libctf: handle nonrepresentable types at link time
GCC can emit references to type 0 to indicate that this type is one that
is not representable in the version of CTF it emits (for instance,
version 3 cannot encode vector types). Type 0 is already used in the
function section to indicate padding inserted to skip functions we do
not want to encode the type of, so using zero in this way is a good
extension of the format: but libctf reports such types as ECTF_BADID,
which is indistinguishable from file corruption via links to truly
nonexistent types with IDs like 0xDEADBEEF etc, which we really do want
to stop for.
In particular, this stops all traversals of types dead at this point,
preventing us from even dumping CTF files containing unrepresentable
types to see what's going on!
So add a new error, ECTF_NONREPRESENTABLE, which is returned by
recursive type resolution when a reference to a zero type is found. (No
zero type is ever emitted into the CTF file by GCC, only references to
one). We can't do much with types that are ultimately nonrepresentable,
but we can do enough to keep functioning.
Adjust ctf_add_type to ensure that top-level types of type zero and
structure and union members of ultimate type zero are simply skipped
without reporting an error, so we can copy structures and unions that
contain nonrepresentable members (skipping them and leaving a hole where
they would be, so no consumers downstream of the linker need to worry
about this): adjust the dumper so that we dump members of
nonrepresentable types in a simple form that indicates
nonrepresentability rather than terminating the dump, and do not falsely
assume all errors to be -ENOMEM: adjust the linker so that types that
fail to get added are simply skipped, so that both nonrepresentable
types and outright errors do not terminate the type addition, which
could skip many valid types and cause further errors when variables of
those types are added.
In future, when we gain the ability to call back to the linker to report
link-time type resolution errors, we should report failures to add all
but nonrepresentable types. But we can't do that yet.
v5: Fix tabdamage.
include/
* ctf-api.h (ECTF_NONREPRESENTABLE): New.
libctf/
* ctf-types.c (ctf_type_resolve): Return ECTF_NONREPRESENTABLE on
type zero.
* ctf-create.c (ctf_add_type): Detect and skip nonrepresentable
members and types.
(ctf_add_variable): Likewise for variables pointing to them.
* ctf-link.c (ctf_link_one_type): Do not warn for nonrepresentable
type link failure, but do warn for others.
* ctf-dump.c (ctf_dump_format_type): Likewise. Do not assume all
errors to be ENOMEM.
(ctf_dump_member): Likewise.
(ctf_dump_type): Likewise.
(ctf_dump_header_strfield): Do not assume all errors to be ENOMEM.
(ctf_dump_header_sectfield): Do not assume all errors to be ENOMEM.
(ctf_dump_header): Likewise.
(ctf_dump_label): likewise.
(ctf_dump_objts): likewise.
(ctf_dump_funcs): likewise.
(ctf_dump_var): likewise.
(ctf_dump_str): Likewise.
2019-08-05 12:40:33 +02:00
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2019-08-05 Nick Alcock <nick.alcock@oracle.com>
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* ctf-api.h (ECTF_NONREPRESENTABLE): New.
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libctf: installable libctf as a shared library
This lets other programs read and write CTF-format data.
Two versioned shared libraries are created: libctf.so and
libctf-nobfd.so. They contain identical content except that
libctf-nobfd.so contains no references to libbfd and does not implement
ctf_open, ctf_fdopen, ctf_bfdopen or ctf_bfdopen_ctfsect, so it can be
used by programs that cannot use BFD, like readelf.
The soname major version is presently .0 until the linker API
stabilizes, when it will flip to .1 and hopefully never change again.
New in v3.
v4: libtoolize and turn into a pair of shared libraries. Drop
--enable-install-ctf: now controlled by --enable-shared and
--enable-install-libbfd, like everything else.
v5: Add ../bfd to ACLOCAL_AMFLAGS and AC_CONFIG_MACRO_DIR. Fix tabdamage.
* Makefile.def (host_modules): libctf is no longer no_install.
* Makefile.in: Regenerated.
libctf/
* configure.ac (AC_DISABLE_SHARED): New, like opcodes/.
(LT_INIT): Likewise.
(AM_INSTALL_LIBBFD): Likewise.
(dlopen): Note why this is necessary in a comment.
(SHARED_LIBADD): Initialize for possibly-PIC libiberty: derived from
opcodes/.
(SHARED_LDFLAGS): Likewise.
(BFD_LIBADD): Likewise, for libbfd.
(BFD_DEPENDENCIES): Likewise.
(VERSION_FLAGS): Initialize, using a version script if ld supports
one, or libtool -export-symbols-regex otherwise.
(AC_CONFIG_MACRO_DIR): Add ../BFD.
* Makefile.am (ACLOCAL_AMFLAGS): Likewise.
(INCDIR): New.
(AM_CPPFLAGS): Use $(srcdir), not $(top_srcdir).
(noinst_LIBRARIES): Replace with...
[INSTALL_LIBBFD] (lib_LTLIBRARIES): This, or...
[!INSTALL_LIBBFD] (noinst_LTLIBRARIES): ... this, mentioning new
libctf-nobfd.la as well.
[INSTALL_LIBCTF] (include_HEADERS): Add the CTF headers.
[!INSTALL_LIBCTF] (include_HEADERS): New, empty.
(libctf_a_SOURCES): Rename to...
(libctf_nobfd_la_SOURCES): ... this, all of libctf other than
ctf-open-bfd.c.
(libctf_la_SOURCES): Now derived from libctf_nobfd_la_SOURCES,
with ctf-open-bfd.c added.
(libctf_nobfd_la_LIBADD): New, using @SHARED_LIBADD@.
(libctf_la_LIBADD): New, using @BFD_LIBADD@ as well.
(libctf_la_DEPENDENCIES): New, using @BFD_DEPENDENCIES@.
* Makefile.am [INSTALL_LIBCTF]: Use it.
* aclocal.m4: Add ../bfd/acinclude.m4, ../config/acx.m4, and the
libtool macros.
* libctf.ver: New, everything is version LIBCTF_1.0 currently (even
the unstable components).
* Makefile.in: Regenerated.
* config.h.in: Likewise.
* configure: Likewise.
binutils/
* Makefile.am (LIBCTF): Mention the .la file.
(LIBCTF_NOBFD): New.
(readelf_DEPENDENCIES): Use it.
(readelf_LDADD): Likewise.
* Makefile.in: Regenerated.
ld/
* configure.ac (TESTCTFLIB): Set to the .so or .a, like TESTBFDLIB.
* Makefile.am (TESTCTFLIB): Use it.
(LIBCTF): Use the .la file.
(check-DEJAGNU): Use it.
* Makefile.in: Regenerated.
* configure: Likewise.
include/
* ctf-api.h: Note the instability of the ctf_link interfaces.
2019-07-20 15:45:12 +02:00
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2019-09-23 Nick Alcock <nick.alcock@oracle.com>
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* ctf-api.h: Note the instability of the ctf_link interfaces.
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bfd, ld: add CTF section linking
This is quite complicated because the CTF section's contents depend on
the final contents of the symtab and strtab, because it has two sections
whose contents are shuffled to be in 1:1 correspondence with the symtab,
and an internal strtab that gets deduplicated against the ELF strtab
(with offsets adjusted to point into the ELF strtab instead). It is
also compressed if large enough, so its size depends on its contents!
So we cannot construct it as early as most sections: we cannot even
*begin* construction until after the symtab and strtab are finalized.
Thankfully there is already one section treated similarly: compressed
debugging sections: the only differences are that compressed debugging
sections have extra handling to deal with their changing name if
compressed (CTF sections are always called ".ctf" for now, though we
have reserved ".ctf.*" against future use), and that compressed
debugging sections have previously-uncompressed content which has to be
stashed away for later compression, while CTF sections have no content
at all until we generate it (very late).
BFD also cannot do the link itself: libctf knows how to do it, and BFD
cannot call libctf directly because libctf already depends on bfd for
file I/O. So we have to use a pair of callbacks, one, examine_strtab,
which allows a caller to examine the symtab and strtab after
finalization (called from elf_link_swap_symbols_out(), right before the
symtabs are written, and after the strtab has been finalized), and one
which actually does the emission (called emit_ctf simply because it is
grouped with a bunch of section-specific late-emission function calls at
the bottom of bfd_elf_final_link, and a section-specific name seems best
for that). emit_ctf is actually called *twice*: once from lang_process
if the emulation suggests that this bfd target does not examine the
symtab or strtab, and once via a bfd callback if it does. (This means
that non-ELF targets still get CTF emitted, even though the late CTF
emission stage is never called for them).
v2: merged with non-ELF support patch: slight commit message
adjustments.
v3: do not spend time merging CTF, or crash, if the CTF section is
explicitly discarded. Do not try to merge or compress CTF unless
linking.
v4: add CTF_COMPRESSION_THRESHOLD. Annul the freed input ctf_file_t's
after writeout: set SEC_IN_MEMORY on the output contents so a future
bfd enhancement knows it could free it. Add SEC_LINKER_CREATED |
SEC_KEEP to avoid having to add .ctf to the linker script. Drop
now-unnecessary ldlang.h-level elf-bfd.h include and hackery around
it. Adapt to elf32.em->elf.em and elf-generic.em->ldelf*.c
changes.
v5: fix tabdamage. Drop #inclusions in .h files: include in .c files,
.em files, and use struct forwards instead. Use bfd_section_is_ctf
inline function rather than SECTION_IS_CTF macro. Move a few
comments.
* Makefile.def (dependencies): all-ld depends on all-libctf.
* Makefile.in: Regenerated.
include/
* bfdlink.h (elf_strtab_hash): New forward.
(elf_sym_strtab): Likewise.
(struct bfd_link_callbacks <examine_strtab>): New.
(struct bfd_link_callbacks <emit_ctf>): Likewise.
bfd/
* elf-bfd.h (bfd_section_is_ctf): New inline function.
* elf.c (special_sections_c): Add ".ctf".
(assign_file_positions_for_non_load_sections): Note that
compressed debugging sections etc are not assigned here. Treat
CTF sections like SEC_ELF_COMPRESS sections when is_linker_output:
sh_offset -1.
(assign_file_positions_except_relocs): Likewise.
(find_section_in_list): Note that debugging and CTF sections, as
well as reloc sections, are assigned later.
(_bfd_elf_assign_file_positions_for_non_load): CTF sections get
their size and contents updated.
(_bfd_elf_set_section_contents): Skip CTF sections: unlike
compressed sections, they have no uncompressed content to copy at
this stage.
* elflink.c (elf_link_swap_symbols_out): Call the examine_strtab
callback right before the strtab is written out.
(bfd_elf_final_link): Don't cache the section contents of CTF
sections: they are not populated yet. Call the emit_ctf callback
right at the end, after all the symbols and strings are flushed
out.
ld/
* ldlang.h: (struct lang_input_statement_struct): Add the_ctf.
(struct elf_sym_strtab): Add forward.
(struct elf_strtab_hash): Likewise.
(ldlang_ctf_apply_strsym): Declare.
(ldlang_write_ctf_late): Likewise.
* ldemul.h (ldemul_emit_ctf_early): New.
(ldemul_examine_strtab_for_ctf): Likewise.
(ld_emulation_xfer_type) <emit_ctf_early>: Likewise.
(ld_emulation_xfer_type) <examine_strtab_for_ctf>: Likewise.
* ldemul.c (ldemul_emit_ctf_early): New.
(ldemul_examine_strtab_for_ctf): Likewise.
* ldlang.c: Include ctf-api.h.
(CTF_COMPRESSION_THRESHOLD): New.
(ctf_output): New. Initialized in...
(ldlang_open_ctf): ... this new function. Open all the CTF
sections in the input files: mark them non-loaded and empty
so as not to copy their contents to the output, but linker-created
so the section gets created in the target.
(ldlang_merge_ctf): New, merge types via ctf_link_add_ctf and
ctf_link.
(ldlang_ctf_apply_strsym): New, an examine_strtab callback: wrap
ldemul_examine_strtab_for_ctf.
(lang_write_ctf): New, write out the CTF section.
(ldlang_write_ctf_late): New, late call via bfd's emit_ctf hook.
(lang_process): Call ldlang_open_ctf, ldlang_merge_ctf, and
lang_write_ctf.
* ldmain.c (link_callbacks): Add ldlang_ctf_apply_strsym,
ldlang_write_ctf_late.
* emultempl/aix.em: Add ctf-api.h.
* emultempl/armcoff.em: Likewise.
* emultempl/beos.em: Likewise.
* emultempl/elf.em: Likewise.
* emultempl/generic.em: Likewise.
* emultempl/linux.em: Likewise.
* emultempl/msp430.em: Likewise.
* emultempl/pe.em: Likewise.
* emultempl/pep.em: Likewise.
* emultempl/ticoff.em: Likewise.
* emultempl/vanilla.em: Likewise.
* ldcref.c: Likewise.
* ldctor.c: Likewise.
* ldelf.c: Likewise.
* ldelfgen.c: Likewise.
* ldemul.c: Likewise.
* ldexp.c: Likewise.
* ldfile.c: Likewise.
* ldgram.c: Likewise.
* ldlex.l: Likewise.
* ldmain.c: Likewise.
* ldmisc.c: Likewise.
* ldver.c: Likewise.
* ldwrite.c: Likewise.
* lexsup.c: Likewise.
* mri.c: Likewise.
* pe-dll.c: Likewise.
* plugin.c: Likewise.
* ldelfgen.c (ldelf_emit_ctf_early): New.
(ldelf_examine_strtab_for_ctf): tell libctf about the symtab and
strtab.
(struct ctf_strsym_iter_cb_arg): New, state to do so.
(ldelf_ctf_strtab_iter_cb): New: tell libctf about
each string in the strtab in turn.
(ldelf_ctf_symbols_iter_cb): New, tell libctf
about each symbol in the symtab in turn.
* ldelfgen.h (struct elf_sym_strtab): Add forward.
(struct elf_strtab_hash): Likewise.
(struct ctf_file): Likewise.
(ldelf_emit_ctf_early): Declare.
(ldelf_examine_strtab_for_ctf): Likewise.
* emultempl/elf-generic.em (LDEMUL_EMIT_CTF_EARLY): Set it.
(LDEMUL_EXAMINE_STRTAB_FOR_CTF): Likewise.
* emultempl/aix.em (ld_${EMULATION_NAME}_emulation): Add
emit_ctf_early and examine_strtab_for_ctf, NULL by default.
* emultempl/armcoff.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/beos.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/elf.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/generic.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/linux.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/msp430.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/pe.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/pep.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/ticoff.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/vanilla.em (ld_vanilla_emulation): Likewise.
* Makefile.am: Pull in libctf (and zlib, a transitive requirement
for compressed CTF section emission). Pass it on to DejaGNU.
* configure.ac: Add AM_ZLIB.
* aclocal.m4: Added zlib.m4.
* Makefile.in: Regenerated.
* testsuite/ld-bootstrap/bootstrap.exp: Use it when relinking ld.
2019-07-13 23:38:00 +02:00
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2019-07-13 Nick Alcock <nick.alcock@oracle.com>
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* bfdlink.h (elf_strtab_hash): New forward.
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(elf_sym_strtab): Likewise.
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(struct bfd_link_callbacks <examine_strtab>): New.
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(struct bfd_link_callbacks <emit_ctf>): Likewise.
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2019-07-13 22:45:55 +02:00
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2019-07-13 Nick Alcock <nick.alcock@oracle.com>
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* ctf-api.h (includes): No longer include <sys/param.h>.
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libctf: add CU-mapping machinery
Once the deduplicator is capable of actually detecting conflicting types
with the same name (i.e., not yet) we will place such conflicting types,
and types that depend on them, into CTF dictionaries that are the child
of the main dictionary we usually emit: currently, this will lead to the
.ctf section becoming a CTF archive rather than a single dictionary,
with the default-named archive member (_CTF_SECTION, or NULL) being the
main shared dictionary with most of the types in it.
By default, the sections are named after the compilation unit they come
from (complete path and all), with the cuname field in the CTF header
providing further evidence of the name without requiring the caller to
engage in tiresome parsing. But some callers may not wish the mapping
from input CU to output sub-dictionary to be purely CU-based.
The machinery here allows this to be freely changed, in two ways:
- callers can call ctf_link_add_cu_mapping to specify that a single
input compilation unit should have its types placed in some other CU
if they conflict: the CU will always be created, even if empty, so
the consuming program can depend on its existence. You can map
multiple input CUs to one output CU to force all their types to be
merged together: if some of *those* types conflict, the behaviour is
currently unspecified (the new deduplicator will specify it).
- callers can call ctf_link_set_memb_name_changer to provide a function
which is passed every CTF sub-dictionary name in turn (including
_CTF_SECTION) and can return a new name, or NULL if no change is
desired. The mapping from input to output names should not map two
input names to the same output name: if this happens, the two are not
merged but will result in an archive with two members with the same
name (technically valid, but it's hard to access the second
same-named member: you have to do an iteration over archive members).
This is used by the kernel's ctfarchive machinery (not yet upstream) to
encode CTF under member names like {module name}.ctf rather than
.ctf.CU, but it is anticipated that other large projects may wish to
have their own storage for CTF outside of .ctf sections and may wish to
have new naming schemes that suit their special-purpose consumers.
New in v3.
v4: check for strdup failure.
v5: fix tabdamage.
include/
* ctf-api.h (ctf_link_add_cu_mapping): New.
(ctf_link_memb_name_changer_f): New.
(ctf_link_set_memb_name_changer): New.
libctf/
* ctf-impl.h (ctf_file_t) <ctf_link_cu_mappping>: New.
<ctf_link_memb_name_changer>: Likewise.
<ctf_link_memb_name_changer_arg>: Likewise.
* ctf-create.c (ctf_update): Update accordingly.
* ctf-open.c (ctf_file_close): Likewise.
* ctf-link.c (ctf_create_per_cu): Apply the cu mapping.
(ctf_link_add_cu_mapping): New.
(ctf_link_set_memb_name_changer): Likewise.
(ctf_change_parent_name): New.
(ctf_name_list_accum_cb_arg_t) <dynames>: New, storage for names
allocated by the caller's ctf_link_memb_name_changer.
<ndynames>: Likewise.
(ctf_accumulate_archive_names): Call the ctf_link_memb_name_changer.
(ctf_link_write): Likewise (for _CTF_SECTION only): also call
ctf_change_parent_name. Free any resulting names.
2019-07-20 15:44:44 +02:00
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2019-07-30 Nick Alcock <nick.alcock@oracle.com>
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* ctf-api.h (ctf_link_add_cu_mapping): New.
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(ctf_link_memb_name_changer_f): New.
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(ctf_link_set_memb_name_changer): New.
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2019-07-13 22:41:25 +02:00
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2019-07-13 Nick Alcock <nick.alcock@oracle.com>
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* ctf-api.h (ECTF_INTERNAL): New.
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libctf: add the ctf_link machinery
This is the start of work on the core of the linking mechanism for CTF
sections. This commit handles the type and string sections.
The linker calls these functions in sequence:
ctf_link_add_ctf: to add each CTF section in the input in turn to a
newly-created ctf_file_t (which will appear in the output, and which
itself will become the shared parent that contains types that all
TUs have in common (in all link modes) and all types that do not
have conflicting definitions between types (by default). Input files
that are themselves products of ld -r are supported, though this is
not heavily tested yet.
ctf_link: called once all input files are added to merge the types in
all the input containers into the output container, eliminating
duplicates.
ctf_link_add_strtab: called once the ELF string table is finalized and
all its offsets are known, this calls a callback provided by the
linker which returns the string content and offset of every string in
the ELF strtab in turn: all these strings which appear in the input
CTF strtab are eliminated from it in favour of the ELF strtab:
equally, any strings that only appear in the input strtab will
reappear in the internal CTF strtab of the output.
ctf_link_shuffle_syms (not yet implemented): called once the ELF symtab
is finalized, this calls a callback provided by the linker which
returns information on every symbol in turn as a ctf_link_sym_t. This
is then used to shuffle the function info and data object sections in
the CTF section into symbol table order, eliminating the index
sections which map those sections to symbol names before that point.
Currently just returns ECTF_NOTYET.
ctf_link_write: Returns a buffer containing either a serialized
ctf_file_t (if there are no types with conflicting definitions in the
object files in the link) or a ctf_archive_t containing a large
ctf_file_t (the common types) and a bunch of small ones named after
individual CUs in which conflicting types are found (containing the
conflicting types, and all types that reference them). A threshold
size above which compression takes place is passed as one parameter.
(Currently, only gzip compression is supported, but I hope to add lzma
as well.)
Lifetime rules for this are simple: don't close the input CTF files
until you've called ctf_link for the last time. We do not assume
that symbols or strings passed in by the callback outlast the
call to ctf_link_add_strtab or ctf_link_shuffle_syms.
Right now, the duplicate elimination mechanism is the one already
present as part of the ctf_add_type function, and is not particularly
good: it misses numerous actual duplicates, and the conflicting-types
detection hardly ever reports that types conflict, even when they do
(one of them just tends to get silently dropped): it is also very slow.
This will all be fixed in the next few weeks, but the fix hardly touches
any of this code, and the linker does work without it, just not as
well as it otherwise might. (And when no CTF section is present,
there is no effect on performance, of course. So only people using
a trunk GCC with not-yet-committed patches will even notice. By the
time it gets upstream, things should be better.)
v3: Fix error handling.
v4: check for strdup failure.
v5: fix tabdamage.
include/
* ctf-api.h (struct ctf_link_sym): New, a symbol in flight to the
libctf linking machinery.
(CTF_LINK_SHARE_UNCONFLICTED): New.
(CTF_LINK_SHARE_DUPLICATED): New.
(ECTF_LINKADDEDLATE): New, replacing ECTF_UNUSED.
(ECTF_NOTYET): New, a 'not yet implemented' message.
(ctf_link_add_ctf): New, add an input file's CTF to the link.
(ctf_link): New, merge the type and string sections.
(ctf_link_strtab_string_f): New, callback for feeding strtab info.
(ctf_link_iter_symbol_f): New, callback for feeding symtab info.
(ctf_link_add_strtab): New, tell the CTF linker about the ELF
strtab's strings.
(ctf_link_shuffle_syms): New, ask the CTF linker to shuffle its
symbols into symtab order.
(ctf_link_write): New, ask the CTF linker to write the CTF out.
libctf/
* ctf-link.c: New file, linking of the string and type sections.
* Makefile.am (libctf_a_SOURCES): Add it.
* Makefile.in: Regenerate.
* ctf-impl.h (ctf_file_t): New fields ctf_link_inputs,
ctf_link_outputs.
* ctf-create.c (ctf_update): Update accordingly.
* ctf-open.c (ctf_file_close): Likewise.
* ctf-error.c (_ctf_errlist): Updated with new errors.
2019-07-13 22:06:55 +02:00
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2019-07-13 Nick Alcock <nick.alcock@oracle.com>
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* ctf-api.h (struct ctf_link_sym): New, a symbol in flight to the
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libctf linking machinery.
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(CTF_LINK_SHARE_UNCONFLICTED): New.
|
|
|
|
|
|
(CTF_LINK_SHARE_DUPLICATED): New.
|
|
|
|
|
|
(ECTF_LINKADDEDLATE): New, replacing ECTF_UNUSED.
|
|
|
|
|
|
(ECTF_NOTYET): New, a 'not yet implemented' message.
|
|
|
|
|
|
(ctf_link_add_ctf): New, add an input file's CTF to the link.
|
|
|
|
|
|
(ctf_link): New, merge the type and string sections.
|
|
|
|
|
|
(ctf_link_strtab_string_f): New, callback for feeding strtab info.
|
|
|
|
|
|
(ctf_link_iter_symbol_f): New, callback for feeding symtab info.
|
|
|
|
|
|
(ctf_link_add_strtab): New, tell the CTF linker about the ELF
|
|
|
|
|
|
strtab's strings.
|
|
|
|
|
|
(ctf_link_shuffle_syms): New, ask the CTF linker to shuffle its
|
|
|
|
|
|
symbols into symtab order.
|
|
|
|
|
|
(ctf_link_write): New, ask the CTF linker to write the CTF out.
|
|
|
|
|
|
|
2019-07-13 21:40:52 +02:00
|
|
|
|
2019-07-13 Nick Alcock <nick.alcock@oracle.com>
|
|
|
|
|
|
|
|
|
|
|
|
* ctf-api.h (ctf_arc_write_fd): New.
|
|
|
|
|
|
(ctf_write_mem): Likewise.
|
|
|
|
|
|
(ctf_gzwrite): Spacing fix.
|
|
|
|
|
|
|
libctf: support getting strings from the ELF strtab
The CTF file format has always supported "external strtabs", which
internally are strtab offsets with their MSB on: such refs
get their strings from the strtab passed in at CTF file open time:
this is usually intended to be the ELF strtab, and that's what this
implementation is meant to support, though in theory the external
strtab could come from anywhere.
This commit adds support for these external strings in the ctf-string.c
strtab tracking layer. It's quite easy: we just add a field csa_offset
to the atoms table that tracks all strings: this field tracks the offset
of the string in the ELF strtab (with its MSB already on, courtesy of a
new macro CTF_SET_STID), and adds a new function that sets the
csa_offset to the specified offset (plus MSB). Then we just need to
avoid writing out strings to the internal strtab if they have csa_offset
set, and note that the internal strtab is shorter than it might
otherwise be.
(We could in theory save a little more time here by eschewing sorting
such strings, since we never actually write the strings out anywhere,
but that would mean storing them separately and it's just not worth the
complexity cost until profiling shows it's worth doing.)
We also have to go through a bit of extra effort at variable-sorting
time. This was previously using direct references to the internal
strtab: it couldn't use ctf_strptr or ctf_strraw because the new strtab
is not yet ready to put in its usual field (in a ctf_file_t that hasn't
even been allocated yet at this stage): but now we're using the external
strtab, this will no longer do because it'll be looking things up in the
wrong strtab, with disastrous results. Instead, pass the new internal
strtab in to a new ctf_strraw_explicit function which is just like
ctf_strraw except you can specify a ne winternal strtab to use.
But even now that it is using a new internal strtab, this is not quite
enough: it can't look up strings in the external strtab because ld
hasn't written it out yet, and when it does will write it straight to
disk. Instead, when we write the internal strtab, note all the offset
-> string mappings that we have noted belong in the *external* strtab to
a new "synthetic external strtab" dynhash, ctf_syn_ext_strtab, and look
in there at ctf_strraw time if it is set. This uses minimal extra
memory (because only strings in the external strtab that we actually use
are stored, and even those come straight out of the atoms table), but
let both variable sorting and name interning when ctf_bufopen is next
called work fine. (This also means that we don't need to filter out
spurious ECTF_STRTAB warnings from ctf_bufopen but can pass them back to
the caller, once we wrap ctf_bufopen so that we have a new internal
variant of ctf_bufopen etc that we can pass the synthetic external
strtab to. That error has been filtered out since the days of Solaris
libctf, which didn't try to handle the problem of getting external
strtabs right at construction time at all.)
v3: add the synthetic strtab and all associated machinery.
v5: fix tabdamage.
include/
* ctf.h (CTF_SET_STID): New.
libctf/
* ctf-impl.h (ctf_str_atom_t) <csa_offset>: New field.
(ctf_file_t) <ctf_syn_ext_strtab>: Likewise.
(ctf_str_add_ref): Name the last arg.
(ctf_str_add_external) New.
(ctf_str_add_strraw_explicit): Likewise.
(ctf_simple_open_internal): Likewise.
(ctf_bufopen_internal): Likewise.
* ctf-string.c (ctf_strraw_explicit): Split from...
(ctf_strraw): ... here, with new support for ctf_syn_ext_strtab.
(ctf_str_add_ref_internal): Return the atom, not the
string.
(ctf_str_add): Adjust accordingly.
(ctf_str_add_ref): Likewise. Move up in the file.
(ctf_str_add_external): New: update the csa_offset.
(ctf_str_count_strtab): Only account for strings with no csa_offset
in the internal strtab length.
(ctf_str_write_strtab): If the csa_offset is set, update the
string's refs without writing the string out, and update the
ctf_syn_ext_strtab. Make OOM handling less ugly.
* ctf-create.c (struct ctf_sort_var_arg_cb): New.
(ctf_update): Handle failure to populate the strtab. Pass in the
new ctf_sort_var arg. Adjust for ctf_syn_ext_strtab addition.
Call ctf_simple_open_internal, not ctf_simple_open.
(ctf_sort_var): Call ctf_strraw_explicit rather than looking up
strings by hand.
* ctf-hash.c (ctf_hash_insert_type): Likewise (but using
ctf_strraw). Adjust to diagnose ECTF_STRTAB nonetheless.
* ctf-open.c (init_types): No longer filter out ECTF_STRTAB.
(ctf_file_close): Destroy the ctf_syn_ext_strtab.
(ctf_simple_open): Rename to, and reimplement as a wrapper around...
(ctf_simple_open_internal): ... this new function, which calls
ctf_bufopen_internal.
(ctf_bufopen): Rename to, and reimplement as a wrapper around...
(ctf_bufopen_internal): ... this new function, which sets
ctf_syn_ext_strtab.
2019-07-13 21:33:01 +02:00
|
|
|
|
2019-07-13 Nick Alcock <nick.alcock@oracle.com>
|
|
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|
|
|
|
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|
|
|
|
* ctf.h (CTF_SET_STID): New.
|
|
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|
|
2019-07-13 21:00:07 +02:00
|
|
|
|
2019-07-13 Nick Alcock <nick.alcock@oracle.com>
|
|
|
|
|
|
|
|
|
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|
|
* ctf-api.h (ctf_type_all_f): New.
|
|
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|
|
|
(ctf_type_iter_all): New.
|
|
|
|
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|
|
2019-07-11 17:21:26 +02:00
|
|
|
|
2019-07-11 Nick Alcock <nick.alcock@oracle.com>
|
|
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|
|
* ctf.h: Add object index and function index sections. Describe
|
|
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|
|
them. Improve the description of the variable section and clarify
|
|
|
|
|
|
the constraints on backward-pointing type nodes.
|
|
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|
|
|
(ctf_header): Add cth_objtidxoff, cth_funcidxoff.
|
|
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|
|
|
|
libctf: allow the header to change between versions
libctf supports dynamic upgrading of the type table as file format
versions change, but before now has not supported changes to the CTF
header. Doing this is complicated by the baroque storage method used:
the CTF header is kept prepended to the rest of the CTF data, just as
when read from the file, and written out from there, and is
endian-flipped in place.
This makes accessing it needlessly hard and makes it almost impossible
to make the header larger if we add fields. The general storage
machinery around the malloced ctf pointer (the 'ctf_base') is also
overcomplicated: the pointer is sometimes malloced locally and sometimes
assigned from a parameter, so freeing it requires checking to see if
that parameter was used, needlessly coupling ctf_bufopen and
ctf_file_close together.
So split the header out into a new ctf_file_t.ctf_header, which is
written out explicitly: squeeze it out of the CTF buffer whenever we
reallocate it, and use ctf_file_t.ctf_buf to skip past the header when
we do not need to reallocate (when no upgrading or endian-flipping is
required). We now track whether the CTF base can be freed explicitly
via a new ctf_dynbase pointer which is non-NULL only when freeing is
possible.
With all this done, we can upgrade the header on the fly and add new
fields as desired, via a new upgrade_header function in ctf-open.
As with other forms of upgrading, libctf upgrades older headers
automatically to the latest supported version at open time.
For a first use of this field, we add a new string field cth_cuname, and
a corresponding setter/getter pair ctf_cuname_set and ctf_cuname: this
is used by debuggers to determine whether a CTF section's types relate
to a single compilation unit, or to all compilation units in the
program. (Types with ambiguous definitions in different CUs have only
one of these types placed in the top-level shared .ctf container: the
rest are placed in much smaller per-CU containers, which have the shared
container as their parent. Since CTF must be useful in the absence of
DWARF, we store the names of the relevant CUs ourselves, so the debugger
can look them up.)
v5: fix tabdamage.
include/
* ctf-api.h (ctf_cuname): New function.
(ctf_cuname_set): Likewise.
* ctf.h: Improve comment around upgrading, no longer
implying that v2 is the target of upgrades (it is v3 now).
(ctf_header_v2_t): New, old-format header for backward
compatibility.
(ctf_header_t): Add cth_cuname: this is the first of several
header changes in format v3.
libctf/
* ctf-impl.h (ctf_file_t): New fields ctf_header, ctf_dynbase,
ctf_cuname, ctf_dyncuname: ctf_base and ctf_buf are no longer const.
* ctf-open.c (ctf_set_base): Preserve the gap between ctf_buf and
ctf_base: do not assume that it is always sizeof (ctf_header_t).
Print out ctf_cuname: only print out ctf_parname if set.
(ctf_free_base): Removed, ctf_base is no longer freed: free
ctf_dynbase instead.
(ctf_set_version): Fix spacing.
(upgrade_header): New, in-place header upgrading.
(upgrade_types): Rename to...
(upgrade_types_v1): ... this. Free ctf_dynbase, not ctf_base. No
longer track old and new headers separately. No longer allow for
header sizes explicitly: squeeze the headers out on upgrade (they
are preserved in fp->ctf_header). Set ctf_dynbase, ctf_base and
ctf_buf explicitly. Use ctf_free, not ctf_free_base.
(upgrade_types): New, also handle ctf_parmax updating.
(flip_header): Flip ctf_cuname.
(flip_types): Flip BUF explicitly rather than deriving BUF from
BASE.
(ctf_bufopen): Store the header in fp->ctf_header. Correct minimum
required alignment of objtoff and funcoff. No longer store it in
the ctf_buf unless that buf is derived unmodified from the input.
Set ctf_dynbase where ctf_base is dynamically allocated. Drop locals
that duplicate fields in ctf_file: move allocation of ctf_file
further up instead. Call upgrade_header as needed. Move
version-specific ctf_parmax initialization into upgrade_types. More
concise error handling.
(ctf_file_close): No longer test for null pointers before freeing.
Free ctf_dyncuname, ctf_dynbase, and ctf_header. Do not call
ctf_free_base.
(ctf_cuname): New.
(ctf_cuname_set): New.
* ctf-create.c (ctf_update): Populate ctf_cuname.
(ctf_gzwrite): Write out the header explicitly. Remove obsolescent
comment.
(ctf_write): Likewise.
(ctf_compress_write): Get the header from ctf_header, not ctf_base.
Fix the compression length: fp->ctf_size never counted the CTF
header. Simplify the compress call accordingly.
2019-07-06 18:36:21 +02:00
|
|
|
|
2019-07-06 Nick Alcock <nick.alcock@oracle.com>
|
|
|
|
|
|
|
|
|
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|
|
* ctf-api.h (ctf_cuname): New function.
|
|
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|
|
(ctf_cuname_set): Likewise.
|
|
|
|
|
|
* ctf.h: Improve comment around upgrading, no longer
|
|
|
|
|
|
implying that v2 is the target of upgrades (it is v3 now).
|
|
|
|
|
|
(ctf_header_v2_t): New, old-format header for backward
|
|
|
|
|
|
compatibility.
|
|
|
|
|
|
(ctf_header_t): Add cth_cuname: this is the first of several
|
|
|
|
|
|
header changes in format v3.
|
|
|
|
|
|
|
linker bfd.h tidy
bfd/
* bfd-in.h (bfd_symbol, bfd_section_already_linked),
(bfd_elf_version_tree): Delete forward declarations.
Move other forward decls and remaining elf function decl later.
(bfd_section_already_linked_table_init),
(bfd_section_already_linked_table_free),
(_bfd_handle_already_linked, _bfd_nearby_section),
(_bfd_fix_excluded_sec_syms): Move to bfdlink.h.
include/
* bfdlink.h (struct bfd_section_already_linked): Forward declare.
(bfd_section_already_linked_table_init),
(bfd_section_already_linked_table_free),
(_bfd_handle_already_linked, _bfd_nearby_section),
(_bfd_fix_excluded_sec_syms): Declare.
2019-09-23 02:44:20 +02:00
|
|
|
|
2019-09-23 Alan Modra <amodra@gmail.com>
|
|
|
|
|
|
|
|
|
|
|
|
* bfdlink.h (struct bfd_section_already_linked): Forward declare.
|
|
|
|
|
|
(bfd_section_already_linked_table_init),
|
|
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|
|
|
(bfd_section_already_linked_table_free),
|
|
|
|
|
|
(_bfd_handle_already_linked, _bfd_nearby_section),
|
|
|
|
|
|
(_bfd_fix_excluded_sec_syms): Declare.
|
|
|
|
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|
|
2019-09-23 02:42:31 +02:00
|
|
|
|
2019-09-23 Alan Modra <amodra@gmail.com>
|
|
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|
|
* bfdlink.h (enum notice_asneeded_action): Define.
|
|
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|
|
2019-09-18 02:59:08 +02:00
|
|
|
|
2019-09-17 Maxim Blinov <maxim.blinov@embecosm.com>
|
|
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|
|
|
|
|
|
* opcode/riscv.h (riscv_insn_class): New enum.
|
|
|
|
|
|
* opcode/riscv.h (struct riscv_opcode): Change
|
|
|
|
|
|
subset field to insn_class field.
|
|
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|
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|
|
2019-09-09 11:27:03 +02:00
|
|
|
|
2019-09-09 Phil Blundell <pb@pbcl.net>
|
|
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|
|
binutils 2.33 branch created.
|
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|
2019-08-30 10:31:19 +02:00
|
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|
2019-08-30 Claudiu Zissulescu <claziss@gmail.com>
|
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|
|
* opcode/arc.h (FASTMATH): Move it from insn_class_t to
|
|
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|
|
insn_subclass_t enum.
|
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|
|
2019-08-22 03:51:48 +02:00
|
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|
|
2019-08-22 Alan Modra <amodra@gmail.com>
|
|
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|
|
* elf/arm.h (ARM_GET_SYM_CMSE_SPCL, ARM_SET_SYM_CMSE_SPCL): Delete.
|
|
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|
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|
|
Add support for a MIPS specific .MIPS.xhash section.
This patch is a reimplementation of [1] which was submitted in 2015 by
Neil Schellenberger. Copyright issue was sorted out [2] last year.
It proposed a new section (.gnu.xhash) and related dynamic tag
(DT_GNU_XHASH). The new section would be virtually identical to the
existing .gnu.hash except for the translation table (xlat) which would
contain correct MIPS .dynsym indexes corresponding to the hashvals in
chains. This is because MIPS ABI imposes a different ordering on the
dynsyms than the one expected by the .gnu.hash section. Another addition
would be a leading word (ngnusyms) which would contain the number of
entries in the translation table.
In this patch, the new section name and dynamic tag are changed to
reflect the fact that the section should be treated as MIPS-specific
(.MIPS.xhash and DT_MIPS_XHASH).
This patch addresses the alignment issue as reported in [3], which is
caused by the leading word added to the .MIPS.xhash section. Leading word
is removed in this patch, and the number of entries in the translation
table is now calculated using DT_MIPS_SYMTABNO dynamic tag (this is
addressed by the corresponding glibc patch).
Suggestions on coding style in [4] were taken into account. Existing
GNU hash testcase was covered, and another one was added in the MIPS
part of the testsuite.
The other major change is reserving MIPS ABI version 5 for .MIPS.xhash,
marking the need of support for .MIPS.xhash in the dynamic linker (again,
addressed in the corresponding glibc patch). This is something which I
am not sure of, especially after reading [5]. I am confused on whether
this ABI version is reserved for IFUNC, or it can be used for this
purpose.
Already mentioned glibc patch is submitted at:
https://sourceware.org/ml/libc-alpha/2019-06/msg00456.html
[1] https://sourceware.org/ml/binutils/2015-10/msg00057.html
[2] https://sourceware.org/ml/binutils/2018-03/msg00025.html
[3] https://sourceware.org/ml/binutils/2016-01/msg00006.html
[4] https://sourceware.org/ml/binutils/2016-02/msg00097.html
[5] https://sourceware.org/ml/libc-alpha/2016-12/msg00853.html
ld * emulparams/elf32bmip.sh: Add .MIPS.xhash section.
* emulparams/elf32bmipn32-defs.sh: Add .MIPS.xhash section.
* emulparams/elf64bmip-defs.sh: Add .MIPS.xhash section.
* emultempl/mipself.em: Remove mips_after_parse function.
* testsuite/ld-elf/hash.d: Update comment.
* testsuite/ld-mips-elf/hash1.d: New test.
* testsuite/ld-mips-elf/hash1.s: Ditto.
* testsuite/ld-mips-elf/hash1a.d: Remove.
* testsuite/ld-mips-elf/hash1b.d: Ditto.
* testsuite/ld-mips-elf/hash1c.d: Ditto
* testsuite/ld-mips-elf/hash2.d: New test.
* testsuite/ld-mips-elf/mips-elf.exp: New tests.
* testsuite/ld-mips-elf/start.s: New test.
bfd * elf-bfd.h (struct elf_backend_data): New members.
* elflink.c (_bfd_elf_link_create_dynamic_sections): Create
.gnu.hash section if necessary.
(struct collect_gnu_hash_codes): New member.
(elf_gnu_hash_process_symidx): New function name.
(elf_renumber_gnu_hash_syms): Ignore local and undefined
symbols. Record xlat location for every symbol which should have
a .MIPS.xhash entry.
(bfd_elf_size_dynamic_sections): Add DT_GNU_HASH dynamic tag to
dynamic section if necessary.
(GNU_HASH_SECTION_NAME): New define.
(bfd_elf_size_dynsym_hash_dynstr): Get .MIPS.xhash section.
Update the section size info.
* elfxx-mips.c (struct mips_elf_hash_sort_data): New members.
(struct mips_elf_link_hash_entry): New member.
(mips_elf_link_hash_newfunc): Initialize .MIPS.xhash translation
table location.
(mips_elf_sort_hash_table): Initialize the pointer to the
.MIPS.xhash section.
(mips_elf_sort_hash_table_f): Populate the .MIPS.xhash
translation table entry with the symbol dynindx.
(_bfd_mips_elf_section_from_shdr): Add SHT_MIPS_XHASH.
(_bfd_mips_elf_fake_sections): Initialize .MIPS.xhash section
info.
(_bfd_mips_elf_create_dynamic_sections): Create .MIPS.xhash
section.
(_bfd_mips_elf_size_dynamic_sections): Add DT_MIPS_XHASH tag to
dynamic section.
(_bfd_mips_elf_finish_synamic_sections): Add DT_MIPS_XHASH.
(_bfd_mips_elf_final_write_processing): Set .MIPS.xhash section
sh_link info.
(_bfd_mips_elf_get_target_dtag): Get DT_MIPS_XHASH tag.
(MIPS_LIBC_ABI_XHASH): New ABI version enum value.
(_bfd_mips_post_process_headers): Mark the ABI version as
MIPS_LIBC_ABI_XHASH if there exists a .MIPS.xhash section,
but not a .hash section.
(_bfd_mips_elf_record_xhash_symbol): New function. Record a
position in the translation table, associated with the hash
entry.
* elfxx-mips.h (literal_reloc_p): Define
elf_backend_record_xhash_symbol backend hook.
* elfxx-target.h: Initialize elf_backend_record_xhash_symbol
backend hook.
include * elf/mips.h (SHT_GNU_XHASH): New define.
(DT_GNU_XHASH): New define.
binutils * readelf.c (get_mips_dynamic_type): Return MIPS_XHASH dynamic type.
(get_mips_section_type_name): Return MI{S_XHASH name string.
(dynamic_section_mips_val): Initialize the .MIPS.xhash dynamic
info.
(process_symbol_table): Initialize the .MIPS.xhash section
pointer. Adjust the readelf output to support the new section.
(process_object): Set the .MIPS.xhash dynamic info to zero.
2019-08-09 12:06:37 +02:00
|
|
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|
2019-08-09 Mihailo Stojanovic <mihailo.stojanovic@rt-rk.com>
|
|
|
|
|
|
|
|
|
|
|
|
* elf/mips.h (SHT_GNU_XHASH): New define.
|
|
|
|
|
|
(DT_GNU_XHASH): New define.
|
|
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|
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|
|
2019-08-08 14:59:17 +02:00
|
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|
|
2019-08-08 Yoshinori Sato <ysato@users.sourceforge.jp>
|
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|
|
* opcode/h8300.h (EXPAND_UNOP_EXTENDED_B): Add MODEL.
|
|
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|
|
(EXPAND_UNOP_EXTENDED_W): Likewise.
|
|
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|
|
(EXPAND_UNOP_EXTENDED_L): Likewise.
|
|
|
|
|
|
(struct h8_opcode h8_opcodes): Likewise.
|
|
|
|
|
|
(struct h8_opcode h8_opcodes): tas / ldm / stm supported H8S or
|
|
|
|
|
|
later.
|
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|
|
2019-07-24 15:46:01 +02:00
|
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|
|
2019-07-24 Claudiu Zissulescu <claziss@synopsys.com>
|
|
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|
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|
|
2019-08-08 14:59:17 +02:00
|
|
|
|
* opcode/arc.h (FASTMATH): Add.
|
2019-07-24 15:46:01 +02:00
|
|
|
|
(SWITCH): Likewise.
|
|
|
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|
|
2019-07-24 07:33:49 +02:00
|
|
|
|
2019-07-24 Alan Modra <amodra@gmail.com>
|
|
|
|
|
|
|
|
|
|
|
|
* elf/internal.h (ELF_SECTION_IN_SEGMENT_1): Exclude non-alloc
|
|
|
|
|
|
sections in GNU_MBIND segments.
|
|
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|
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|
|
2019-07-23 10:44:57 +02:00
|
|
|
|
2019-07-23 Omar Majid <omajid@redhat.com>
|
|
|
|
|
|
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|
|
* coff/i386.h (IMAGE_FILE_MACHINE_NATIVE_APPLE_OVERRIDE): Define.
|
|
|
|
|
|
(IMAGE_FILE_MACHINE_NATIVE_FREEBSD_OVERRIDE): Define.
|
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|
|
|
|
(IMAGE_FILE_MACHINE_NATIVE_LINUX_OVERRIDE): Define.
|
|
|
|
|
|
(IMAGE_FILE_MACHINE_NATIVE_NETBSD_OVERRIDE): Define.
|
|
|
|
|
|
(I386_APPLE_MAGIC): Define.
|
|
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|
|
|
(I386_FREEBSD_MAGIC): Define.
|
|
|
|
|
|
(I386_LINUX_MAGIC): Define.
|
|
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|
|
|
(I386_NETBSD_MAGIC): Define.
|
|
|
|
|
|
(I386BADMAG): Extend macro to allow new magic numbers.
|
|
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|
|
|
* coff/x86_64.h (IMAGE_FILE_MACHINE_NATIVE_APPLE_OVERRIDE): Define.
|
|
|
|
|
|
(IMAGE_FILE_MACHINE_NATIVE_FREEBSD_OVERRIDE): Define.
|
|
|
|
|
|
(IMAGE_FILE_MACHINE_NATIVE_LINUX_OVERRIDE): Define.
|
|
|
|
|
|
(IMAGE_FILE_MACHINE_NATIVE_NETBSD_OVERRIDE): Define.
|
|
|
|
|
|
(AMD64_APPLE_MAGIC): Define.
|
|
|
|
|
|
(AMD64_FREEBSD_MAGIC): Define.
|
|
|
|
|
|
(AMD64_LINUX_MAGIC): Define.
|
|
|
|
|
|
(AMD64_NETBSD_MAGIC): Define.
|
|
|
|
|
|
(AMD64BADMAG): Extend macro to allow new magic numbers.
|
|
|
|
|
|
|
[PowerPC64] pc-relative TLS relocations
This patch supports using pcrel instructions in TLS code sequences. A
number of new relocations are needed, gas operand modifiers to
generate those relocations, and new TLS optimisation. For
optimisation it turns out that the new pcrel GD and LD sequences can
be distinguished from the non-pcrel GD and LD sequences by there being
different relocations on the new sequence. The final "add ra,rb,13"
on IE sequences similarly needs a new relocation, or as I chose, a
modification of R_PPC64_TLS. On pcrel IE code, the R_PPC64_TLS points
one byte into the "add" instruction rather than being on the
instruction boundary.
GD:
pla 3,z@got@tlsgd@pcrel # R_PPC64_GOT_TLSGD34
bl __tls_get_addr@notoc(z@tlsgd) # R_PPC64_TLSGD and R_PPC64_REL24_NOTOC
edited to IE
pld 3,z@got@tprel@pcrel
add 3,3,13
edited to LE
paddi 3,13,z@tprel
nop
LD:
pla 3,z@got@tlsld@pcrel # R_PPC64_GOT_TLSLD34
bl __tls_get_addr@notoc(z@tlsld) # R_PPC64_TLSLD and R_PPC64_REL24_NOTOC
..
paddi 9,3,z2@dtprel
pld 10,z3@got@dtprel@pcrel
add 10,10,3
edited to LE
paddi 3,13,0x1000
nop
IE:
pld 9,z@got@tprel@pcrel # R_PPC64_GOT_TPREL34
add 3,9,z@tls@pcrel # R_PPC64_TLS at insn+1
ldx 4,9,z@tls@pcrel
lwax 5,9,z@tls@pcrel
stdx 5,9,z@tls@pcrel
edited to LE
paddi 9,13,z@tprel
nop
ld 4,0(9)
lwa 5,0(9)
std 5,0(9)
LE:
paddi 10,13,z@tprel
include/
* elf/ppc64.h (R_PPC64_TPREL34, R_PPC64_DTPREL34),
(R_PPC64_GOT_TLSGD34, R_PPC64_GOT_TLSLD34),
(R_PPC64_GOT_TPREL34, R_PPC64_GOT_DTPREL34): Define.
(IS_PPC64_TLS_RELOC): Include new tls relocs.
bfd/
* reloc.c (BFD_RELOC_PPC64_TPREL34, BFD_RELOC_PPC64_DTPREL34),
(BFD_RELOC_PPC64_GOT_TLSGD34, BFD_RELOC_PPC64_GOT_TLSLD34),
(BFD_RELOC_PPC64_GOT_TPREL34, BFD_RELOC_PPC64_GOT_DTPREL34),
(BFD_RELOC_PPC64_TLS_PCREL): New pcrel tls relocs.
* elf64-ppc.c (ppc64_elf_howto_raw): Add howtos for pcrel tls relocs.
(ppc64_elf_reloc_type_lookup): Translate pcrel tls relocs.
(must_be_dyn_reloc, dec_dynrel_count): Add R_PPC64_TPREL64.
(ppc64_elf_check_relocs): Support pcrel tls relocs.
(ppc64_elf_tls_optimize, ppc64_elf_relocate_section): Likewise.
* bfd-in2.h: Regenerate.
* libbfd.h: Regenerate.
gas/
* config/tc-ppc.c (ppc_elf_suffix): Map "tls@pcrel", "got@tlsgd@pcrel",
"got@tlsld@pcrel", "got@tprel@pcrel", and "got@dtprel@pcrel".
(fixup_size, md_assemble): Handle pcrel tls relocs.
(ppc_force_relocation, ppc_fix_adjustable): Likewise.
(md_apply_fix, tc_gen_reloc): Likewise.
ld/
* testsuite/ld-powerpc/tlsgd.d,
* testsuite/ld-powerpc/tlsgd.s,
* testsuite/ld-powerpc/tlsie.d,
* testsuite/ld-powerpc/tlsie.s,
* testsuite/ld-powerpc/tlsld.d,
* testsuite/ld-powerpc/tlsld.s: New tests.
* testsuite/ld-powerpc/powerpc.exp: Run them.
2019-07-19 08:06:58 +02:00
|
|
|
|
2019-07-19 Alan Modra <amodra@gmail.com>
|
|
|
|
|
|
|
|
|
|
|
|
* elf/ppc64.h (R_PPC64_TPREL34, R_PPC64_DTPREL34),
|
|
|
|
|
|
(R_PPC64_GOT_TLSGD34, R_PPC64_GOT_TLSLD34),
|
|
|
|
|
|
(R_PPC64_GOT_TPREL34, R_PPC64_GOT_DTPREL34): Define.
|
|
|
|
|
|
(IS_PPC64_TLS_RELOC): Include new tls relocs.
|
|
|
|
|
|
|
2019-07-18 19:44:21 +02:00
|
|
|
|
2019-07-18 Nick Alcock <nick.alcock@oracle.com>
|
|
|
|
|
|
|
|
|
|
|
|
* ctf-api.h (ECTF_NOTFUNC): Fix description.
|
|
|
|
|
|
(ctf_func_type_info): New.
|
|
|
|
|
|
(ctf_func_type_args): Likewise.
|
|
|
|
|
|
(ctf_type_aname_raw): Likewise.
|
|
|
|
|
|
|
2019-07-16 09:30:29 +02:00
|
|
|
|
2019-07-16 Jan Beulich <jbeulich@suse.com>
|
|
|
|
|
|
|
|
|
|
|
|
* opcode/i386.h (POP_SEG386_SHORT): New.
|
|
|
|
|
|
|
[gas][aarch64][SVE2] Fix pmull{t,b} requirement on SVE2-AES
I had mistakenly given all variants of the new SVE2 instructions
pmull{t,b} a dependency on the feature +sve2-aes.
Only the variant specifying .Q -> .D sizes should have that
restriction.
This patch fixes that mistake and updates the testsuite to have extra
tests (matching the given set of tests per line in aarch64-tbl.h that
the rest of the SVE2 tests follow).
We also add a line in the documentation of the command line to clarify
how to enable `pmull{t,b}` of this larger size. This is needed because
all other instructions gated under the `sve2-aes` architecture extension
are marked in the instruction documentation by an `HaveSVE2AES` check
while pmull{t,b} is gated under the `HaveSVE2PMULL128` check.
Regtested targeting aarch64-linux.
gas/ChangeLog:
2019-07-01 Matthew Malcomson <matthew.malcomson@arm.com>
* testsuite/gas/aarch64/illegal-sve2-aes.d: Update tests.
* testsuite/gas/aarch64/illegal-sve2.l: Update tests.
* doc/c-aarch64.texi: Add special note of pmull{t,b}
instructions under the sve2-aes architecture extension.
* testsuite/gas/aarch64/illegal-sve2.s: Add small size
pmull{t,b} instructions.
* testsuite/gas/aarch64/sve2.d: Add small size pmull{t,b}
disassembly.
* testsuite/gas/aarch64/sve2.s: Add small size pmull{t,b}
instructions.
include/ChangeLog:
2019-07-01 Matthew Malcomson <matthew.malcomson@arm.com>
* opcode/aarch64.h (enum aarch64_insn_class): sve_size_013
renamed to sve_size_13.
opcodes/ChangeLog:
2019-07-01 Matthew Malcomson <matthew.malcomson@arm.com>
* aarch64-asm.c (aarch64_encode_variant_using_iclass): Use new
sve_size_13 icode to account for variant behaviour of
pmull{t,b}.
* aarch64-dis-2.c: Regenerate.
* aarch64-dis.c (aarch64_decode_variant_using_iclass): Use new
sve_size_13 icode to account for variant behaviour of
pmull{t,b}.
* aarch64-tbl.h (OP_SVE_VVV_HD_BS): Add new qualifier.
(OP_SVE_VVV_Q_D): Add new qualifier.
(OP_SVE_VVV_QHD_DBS): Remove now unused qualifier.
(struct aarch64_opcode): Split pmull{t,b} into those requiring
AES and those not.
2019-07-01 16:17:22 +02:00
|
|
|
|
2019-07-01 Matthew Malcomson <matthew.malcomson@arm.com>
|
|
|
|
|
|
|
|
|
|
|
|
* opcode/aarch64.h (enum aarch64_insn_class): sve_size_013
|
|
|
|
|
|
renamed to sve_size_13.
|
|
|
|
|
|
|
2019-07-16 11:42:37 +02:00
|
|
|
|
2019-06-19 Nick Alcock <nick.alcock@oracle.com>
|
libctf: endianness fixes
Testing of the first code to generate CTF_K_SLICEs on big-endian
revealed a bunch of new problems in this area. Most importantly, the
trick we did earlier to avoid wasting two bytes on padding in the
ctf_slice_t is best avoided: because it leads to the whole file after
that point no longer being naturally aligned, all multibyte accesses
from then on must use memmove() to avoid unaligned access on platforms
where that is fatal. In future, this is planned, but for now we are
still doing direct access in many places, so we must revert to making
ctf_slice_t properly aligned for storage in an array.
Rather than wasting bytes on padding, we boost the size of cts_offset
and cts_bits. This is still a waste of space (we cannot have offsets or
bits in bitfields > 256) but it cannot be avoided for now, and slices
are not so common that this will be a serious problem.
A possibly-worse endianness problem fixed at the same time involves
a codepath used only for foreign-endian, uncompressed CTF files, where
we were not copying the actual CTF data into the buffer, leading to
libctf reading only zeroes (or, possibly, uninitialized garbage).
Finally, when we read in a CTF file, we copy the header and work from
the copy. We were flipping the endianness of the header copy, and of
the body of the file buffer, but not of the header in the file buffer
itself: so if we write the file back out again we end up with an
unreadable frankenfile with header and body of different endiannesses.
Fix by flipping both copies of the header.
include/
* ctf.h (ctf_slice_t): Make cts_offset and cts_bits unsigned
short, so following structures are properly aligned.
libctf/
* ctf-open.c (get_vbytes_common): Return the new slice size.
(ctf_bufopen): Flip the endianness of the CTF-section header copy.
Remember to copy in the CTF data when opening an uncompressed
foreign-endian CTF file. Prune useless variable manipulation.
2019-06-19 13:34:56 +02:00
|
|
|
|
|
|
|
|
|
|
* ctf.h (ctf_slice_t): Make cts_offset and cts_bits unsigned
|
|
|
|
|
|
short, so following structures are properly aligned.
|
|
|
|
|
|
|
2018-11-28 20:35:04 +01:00
|
|
|
|
2019-06-14 Szabolcs Nagy <szabolcs.nagy@arm.com>
|
|
|
|
|
|
|
|
|
|
|
|
* elf/aarch64.h (R_AARCH64_P32_MOVW_PREL_G0): Define.
|
|
|
|
|
|
(R_AARCH64_P32_MOVW_PREL_G0_NC): Define.
|
|
|
|
|
|
(R_AARCH64_P32_MOVW_PREL_G1): Define.
|
|
|
|
|
|
|
2019-06-03 12:38:08 +02:00
|
|
|
|
2019-06-03 Nick Alcock <nick.alcock@oracle.com>
|
|
|
|
|
|
|
|
|
|
|
|
* ctf.h (ctf_enum.cte_value): Fix type to int32_t.
|
|
|
|
|
|
|
libctf: fix a number of build problems found on Solaris and NetBSD
- Use of nonportable <endian.h>
- Use of qsort_r
- Use of zlib without appropriate magic to pull in the binutils zlib
- Use of off64_t without checking (fixed by dropping the unused fields
that need off64_t entirely)
- signedness problems due to long being too short a type on 32-bit
platforms: ctf_id_t is now 'unsigned long', and CTF_ERR must be
used only for functions that return ctf_id_t
- One lingering use of bzero() and of <sys/errno.h>
All fixed, using code from gnulib where possible.
Relatedly, set cts_size in a couple of places it was missed
(string table and symbol table loading upon ctf_bfdopen()).
binutils/
* objdump.c (make_ctfsect): Drop cts_type, cts_flags, and
cts_offset.
* readelf.c (shdr_to_ctf_sect): Likewise.
include/
* ctf-api.h (ctf_sect_t): Drop cts_type, cts_flags, and cts_offset.
(ctf_id_t): This is now an unsigned type.
(CTF_ERR): Cast it to ctf_id_t. Note that it should only be used
for ctf_id_t-returning functions.
libctf/
* Makefile.am (ZLIB): New.
(ZLIBINC): Likewise.
(AM_CFLAGS): Use them.
(libctf_a_LIBADD): New, for LIBOBJS.
* configure.ac: Check for zlib, endian.h, and qsort_r.
* ctf-endian.h: New, providing htole64 and le64toh.
* swap.h: Code style fixes.
(bswap_identity_64): New.
* qsort_r.c: New, from gnulib (with one added #include).
* ctf-decls.h: New, providing a conditional qsort_r declaration,
and unconditional definitions of MIN and MAX.
* ctf-impl.h: Use it. Do not use <sys/errno.h>.
(ctf_set_errno): Now returns unsigned long.
* ctf-util.c (ctf_set_errno): Adjust here too.
* ctf-archive.c: Use ctf-endian.h.
(ctf_arc_open_by_offset): Use memset, not bzero. Drop cts_type,
cts_flags and cts_offset.
(ctf_arc_write): Drop debugging dependent on the size of off_t.
* ctf-create.c: Provide a definition of roundup if not defined.
(ctf_create): Drop cts_type, cts_flags and cts_offset.
(ctf_add_reftype): Do not check if type IDs are below zero.
(ctf_add_slice): Likewise.
(ctf_add_typedef): Likewise.
(ctf_add_member_offset): Cast error-returning ssize_t's to size_t
when known error-free. Drop CTF_ERR usage for functions returning
int.
(ctf_add_member_encoded): Drop CTF_ERR usage for functions returning
int.
(ctf_add_variable): Likewise.
(enumcmp): Likewise.
(enumadd): Likewise.
(membcmp): Likewise.
(ctf_add_type): Likewise. Cast error-returning ssize_t's to size_t
when known error-free.
* ctf-dump.c (ctf_is_slice): Drop CTF_ERR usage for functions
returning int: use CTF_ERR for functions returning ctf_type_id.
(ctf_dump_label): Likewise.
(ctf_dump_objts): Likewise.
* ctf-labels.c (ctf_label_topmost): Likewise.
(ctf_label_iter): Likewise.
(ctf_label_info): Likewise.
* ctf-lookup.c (ctf_func_args): Likewise.
* ctf-open.c (upgrade_types): Cast to size_t where appropriate.
(ctf_bufopen): Likewise. Use zlib types as needed.
* ctf-types.c (ctf_member_iter): Drop CTF_ERR usage for functions
returning int.
(ctf_enum_iter): Likewise.
(ctf_type_size): Likewise.
(ctf_type_align): Likewise. Cast to size_t where appropriate.
(ctf_type_kind_unsliced): Likewise.
(ctf_type_kind): Likewise.
(ctf_type_encoding): Likewise.
(ctf_member_info): Likewise.
(ctf_array_info): Likewise.
(ctf_enum_value): Likewise.
(ctf_type_rvisit): Likewise.
* ctf-open-bfd.c (ctf_bfdopen): Drop cts_type, cts_flags and
cts_offset.
(ctf_simple_open): Likewise.
(ctf_bfdopen_ctfsect): Likewise. Set cts_size properly.
* Makefile.in: Regenerate.
* aclocal.m4: Likewise.
* config.h: Likewise.
* configure: Likewise.
2019-05-31 11:10:51 +02:00
|
|
|
|
2019-05-29 Nick Alcock <nick.alcock@oracle.com>
|
|
|
|
|
|
|
|
|
|
|
|
* ctf-api.h (ctf_sect_t): Drop cts_type, cts_flags, and cts_offset.
|
|
|
|
|
|
(ctf_id_t): This is now an unsigned type.
|
|
|
|
|
|
(CTF_ERR): Cast it to ctf_id_t. Note that it should only be used
|
|
|
|
|
|
for ctf_id_t-returning functions.
|
|
|
|
|
|
|
2019-04-24 12:41:00 +02:00
|
|
|
|
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
|
|
|
|
|
|
|
|
|
|
|
|
* ctf-api.h (ctf_dump_decorate_f): New.
|
|
|
|
|
|
(ctf_dump_state_t): new.
|
|
|
|
|
|
(ctf_dump): New.
|
|
|
|
|
|
|
2019-04-24 12:35:37 +02:00
|
|
|
|
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
|
|
|
|
|
|
|
|
|
|
|
|
* ctf-api.h (ctf_label_f): New.
|
|
|
|
|
|
(ctf_label_set): New.
|
|
|
|
|
|
(ctf_label_get): New.
|
|
|
|
|
|
(ctf_label_topmost): New.
|
|
|
|
|
|
(ctf_label_info): New.
|
|
|
|
|
|
(ctf_label_iter): New.
|
|
|
|
|
|
|
2019-04-24 12:26:42 +02:00
|
|
|
|
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
|
|
|
|
|
|
|
|
|
|
|
|
* ctf-api.h (ctf_version): New.
|
|
|
|
|
|
|
2019-04-24 12:15:33 +02:00
|
|
|
|
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
|
|
|
|
|
|
|
|
|
|
|
|
* ctf-api.h (ctf_func_info): New.
|
|
|
|
|
|
(ctf_func_args): Likewise.
|
|
|
|
|
|
(ctf_lookup_by_symbol): Likewise.
|
|
|
|
|
|
(ctf_lookup_by_symbol): Likewise.
|
|
|
|
|
|
(ctf_lookup_variable): Likewise.
|
|
|
|
|
|
|
2019-04-24 12:03:37 +02:00
|
|
|
|
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
|
|
|
|
|
|
|
|
|
|
|
|
* ctf-api.h (ctf_visit_f): New definition.
|
|
|
|
|
|
(ctf_member_f): Likewise.
|
|
|
|
|
|
(ctf_enum_f): Likewise.
|
|
|
|
|
|
(ctf_variable_f): Likewise.
|
|
|
|
|
|
(ctf_type_f): Likewise.
|
|
|
|
|
|
(ctf_type_isparent): Likewise.
|
|
|
|
|
|
(ctf_type_ischild): Likewise.
|
|
|
|
|
|
(ctf_type_resolve): Likewise.
|
|
|
|
|
|
(ctf_type_aname): Likewise.
|
|
|
|
|
|
(ctf_type_lname): Likewise.
|
|
|
|
|
|
(ctf_type_name): Likewise.
|
|
|
|
|
|
(ctf_type_sizee): Likewise.
|
|
|
|
|
|
(ctf_type_align): Likewise.
|
|
|
|
|
|
(ctf_type_kind): Likewise.
|
|
|
|
|
|
(ctf_type_reference): Likewise.
|
|
|
|
|
|
(ctf_type_pointer): Likewise.
|
|
|
|
|
|
(ctf_type_encoding): Likewise.
|
|
|
|
|
|
(ctf_type_visit): Likewise.
|
|
|
|
|
|
(ctf_type_cmp): Likewise.
|
|
|
|
|
|
(ctf_type_compat): Likewise.
|
|
|
|
|
|
(ctf_member_info): Likewise.
|
|
|
|
|
|
(ctf_array_info): Likewise.
|
|
|
|
|
|
(ctf_enum_name): Likewise.
|
|
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|
|
|
(ctf_enum_value): Likewise.
|
|
|
|
|
|
(ctf_member_iter): Likewise.
|
|
|
|
|
|
(ctf_enum_iter): Likewise.
|
|
|
|
|
|
(ctf_type_iter): Likewise.
|
|
|
|
|
|
(ctf_variable_iter): Likewise.
|
|
|
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|
|
libctf: ELF file opening via BFD
These functions let you open an ELF file with a customarily-named CTF
section in it, automatically opening the CTF file or archive and
associating the symbol and string tables in the ELF file with the CTF
container, so that you can look up the types of symbols in the ELF file
via ctf_lookup_by_symbol(), and so that strings can be shared between
the ELF file and CTF container, to save space.
It uses BFD machinery to do so. This has now been lightly tested and
seems to work. In particular, if you already have a bfd you can pass
it in to ctf_bfdopen(), and if you want a bfd made for you you can
call ctf_open() or ctf_fdopen(), optionally specifying a target (or
try once without a target and then again with one if you get
ECTF_BFD_AMBIGUOUS back).
We use a forward declaration for the struct bfd in ctf-api.h, so that
ctf-api.h users are not required to pull in <bfd.h>. (This is mostly
for the sake of readelf.)
libctf/
* ctf-open-bfd.c: New file.
* ctf-open.c (ctf_close): New.
* ctf-impl.h: Include bfd.h.
(ctf_file): New members ctf_data_mmapped, ctf_data_mmapped_len.
(ctf_archive_internal): New members ctfi_abfd, ctfi_data,
ctfi_bfd_close.
(ctf_bfdopen_ctfsect): New declaration.
(_CTF_SECTION): likewise.
include/
* ctf-api.h (struct bfd): New forward.
(ctf_fdopen): New.
(ctf_bfdopen): Likewise.
(ctf_open): Likewise.
(ctf_arc_open): Likewise.
2019-04-24 11:46:39 +02:00
|
|
|
|
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
|
|
|
|
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|
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|
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|
|
* ctf-api.h (struct bfd): New forward.
|
|
|
|
|
|
(ctf_fdopen): New.
|
|
|
|
|
|
(ctf_bfdopen): Likewise.
|
|
|
|
|
|
(ctf_open): Likewise.
|
|
|
|
|
|
(ctf_arc_open): Likewise.
|
|
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|
|
libctf: mmappable archives
If you need to store a large number of CTF containers somewhere, this
provides a dedicated facility for doing so: an mmappable archive format
like a very simple tar or ar without all the system-dependent format
horrors or need for heavy file copying, with built-in compression of
files above a particular size threshold.
libctf automatically mmap()s uncompressed elements of these archives, or
uncompresses them, as needed. (If the platform does not support mmap(),
copying into dynamically-allocated buffers is used.)
Archive iteration operations are partitioned into raw and non-raw
forms. Raw operations pass thhe raw archive contents to the callback:
non-raw forms open each member with ctf_bufopen() and pass the resulting
ctf_file_t to the iterator instead. This lets you manipulate the raw
data in the archive, or the contents interpreted as a CTF file, as
needed.
It is not yet known whether we will store CTF archives in a linked ELF
object in one of these (akin to debugdata) or whether they'll get one
section per TU plus one parent container for types shared between them.
(In the case of ELF objects with very large numbers of TUs, an archive
of all of them would seem preferable, so we might just use an archive,
and add lzma support so you can assume that .gnu_debugdata and .ctf are
compressed using the same algorithm if both are present.)
To make usage easier, the ctf_archive_t is not the on-disk
representation but an abstraction over both ctf_file_t's and archives of
many ctf_file_t's: users see both CTF archives and raw CTF files as
ctf_archive_t's upon opening, the only difference being that a raw CTF
file has only a single "archive member", named ".ctf" (the default if a
null pointer is passed in as the name). The next commit will make use
of this facility, in addition to providing the public interface to
actually open archives. (In the future, it should be possible to have
all CTF sections in an ELF file appear as an "archive" in the same
fashion.)
This machinery is also used to allow library-internal creators of
ctf_archive_t's (such as the next commit) to stash away an ELF string
and symbol table, so that all opens of members in a given archive will
use them. This lets CTF archives exploit the ELF string and symbol
table just like raw CTF files can.
(All this leads to somewhat confusing type naming. The ctf_archive_t is
a typedef for the opaque internal type, struct ctf_archive_internal: the
non-internal "struct ctf_archive" is the on-disk structure meant for
other libraries manipulating CTF files. It is probably clearest to use
the struct name for struct ctf_archive_internal inside the program, and
the typedef names outside.)
libctf/
* ctf-archive.c: New.
* ctf-impl.h (ctf_archive_internal): New type.
(ctf_arc_open_internal): New declaration.
(ctf_arc_bufopen): Likewise.
(ctf_arc_close_internal): Likewise.
include/
* ctf.h (CTFA_MAGIC): New.
(struct ctf_archive): New.
(struct ctf_archive_modent): Likewise.
* ctf-api.h (ctf_archive_member_f): New.
(ctf_archive_raw_member_f): Likewise.
(ctf_arc_write): Likewise.
(ctf_arc_close): Likewise.
(ctf_arc_open_by_name): Likewise.
(ctf_archive_iter): Likewise.
(ctf_archive_raw_iter): Likewise.
(ctf_get_arc): Likewise.
2019-04-24 12:30:17 +02:00
|
|
|
|
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
|
|
|
|
|
|
|
|
|
|
|
|
* ctf.h (CTFA_MAGIC): New.
|
|
|
|
|
|
(struct ctf_archive): New.
|
|
|
|
|
|
(struct ctf_archive_modent): Likewise.
|
|
|
|
|
|
* ctf-api.h (ctf_archive_member_f): New.
|
|
|
|
|
|
(ctf_archive_raw_member_f): Likewise.
|
|
|
|
|
|
(ctf_arc_write): Likewise.
|
|
|
|
|
|
(ctf_arc_close): Likewise.
|
|
|
|
|
|
(ctf_arc_open_by_name): Likewise.
|
|
|
|
|
|
(ctf_archive_iter): Likewise.
|
|
|
|
|
|
(ctf_archive_raw_iter): Likewise.
|
|
|
|
|
|
(ctf_get_arc): Likewise.
|
|
|
|
|
|
|
libctf: opening
This fills in the other half of the opening/creation puzzle: opening of
already-existing CTF files. Such files are always read-only: if you
want to add to a CTF file opened with one of the opening functions in
this file, use ctf_add_type(), in a later commit, to copy appropriate
types into a newly ctf_create()d, writable container.
The lowest-level opening functions are in here: ctf_bufopen(), which
takes ctf_sect_t structures akin to ELF section headers, and
ctf_simple_open(), which can be used if you don't have an entire ELF
section header to work from. Both will malloc() new space for the
buffers only if necessary, will mmap() directly from the file if
requested, and will mprotect() it afterwards to prevent accidental
corruption of the types. These functions are also used by ctf_update()
when converting types in a writable container into read-only types that
can be looked up using the lookup functions (in later commits).
The files are always of the native endianness of the system that created
them: at read time, the endianness of the header magic number is used to
determine whether or not the file needs byte-swapping, and the entire
thing is aggressively byte-swapped.
The agggressive nature of this swapping avoids complicating the rest of
the code with endianness conversions, while the native endianness
introduces no byte-swapping overhead in the common case. (The
endianness-independence code is also much newer than everything else in
this file, and deserves closer scrutiny.)
The accessors at the top of the file are there to transparently support
older versions of the CTF file format, allowing translation from older
formats that have different sizes for the structures in ctf.h:
currently, these older formats are intermingled with the newer ones in
ctf.h: they will probably migrate to a compatibility header in time, to
ease readability. The ctf_set_base() function is split out for the same
reason: when conversion code to a newer format is written, it would need
to malloc() new storage for the entire ctf_file_t if a file format
change causes it to grow, and for that we need ctf_set_base() to be a
separate function.
One pair of linked data structures supported by this file has no
creation code in libctf yet: the data and function object sections read
by init_symtab(). These will probably arrive soon, when the linker comes
to need them. (init_symtab() has hardly been changed since 2009, but if
any code in libctf has rotted over time, this will.)
A few simple accessors are also present that can even be called on
read-only containers because they don't actually modify them, since the
relevant things are not stored in the container but merely change its
operation: ctf_setmodel(), which lets you specify whether a container is
LP64 or not (used to statically determine the sizes of a few types),
ctf_import(), which is the only way to associate a parent container with
a child container, and ctf_setspecific(), which lets the caller
associate an arbitrary pointer with the CTF container for any use. If
the user doesn't call these functions correctly, libctf will misbehave:
this is particularly important for ctf_import(), since a container built
against a given parent container will not be able to resolve types that
depend on types in the parent unless it is ctf_import()ed with a parent
container with the same set of types at the same IDs, or a superset.
Possible future extensions (also noted in the ctf-hash.c file) include
storing a count of things so that we don't need to do one pass over the
CTF file counting everything, and computing a perfect hash at CTF
creation time in some compact form, storing it in the CTF file, and
using it to hash things so we don't need to do a second pass over the
entire CTF file to set up the hashes used to go from names to type IDs.
(There are multiple such hashes, one for each C type namespace: types,
enums, structs, and unions.)
libctf/
* ctf-open.c: New file.
* swap.h: Likewise.
include/
* ctf-api.h (ctf_file_close): New declaration.
(ctf_getdatasect): Likewise.
(ctf_parent_file): Likewise.
(ctf_parent_name): Likewise.
(ctf_parent_name_set): Likewise.
(ctf_import): Likewise.
(ctf_setmodel): Likewise.
(ctf_getmodel): Likewise.
(ctf_setspecific): Likewise.
(ctf_getspecific): Likewise.
2019-04-24 11:17:13 +02:00
|
|
|
|
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
|
|
|
|
|
|
|
|
|
|
|
|
* ctf-api.h (ctf_file_close): New declaration.
|
|
|
|
|
|
(ctf_getdatasect): Likewise.
|
|
|
|
|
|
(ctf_parent_file): Likewise.
|
|
|
|
|
|
(ctf_parent_name): Likewise.
|
|
|
|
|
|
(ctf_parent_name_set): Likewise.
|
|
|
|
|
|
(ctf_import): Likewise.
|
|
|
|
|
|
(ctf_setmodel): Likewise.
|
|
|
|
|
|
(ctf_getmodel): Likewise.
|
|
|
|
|
|
(ctf_setspecific): Likewise.
|
|
|
|
|
|
(ctf_getspecific): Likewise.
|
|
|
|
|
|
|
libctf: creation functions
The CTF creation process looks roughly like (error handling elided):
int err;
ctf_file_t *foo = ctf_create (&err);
ctf_id_t type = ctf_add_THING (foo, ...);
ctf_update (foo);
ctf_*write (...);
Some ctf_add_THING functions accept other type IDs as arguments,
depending on the type: cv-quals, pointers, and structure and union
members all take other types as arguments. So do 'slices', which
let you take an existing integral type and recast it as a type
with a different bitness or offset within a byte, for bitfields.
One class of THING is not a type: "variables", which are mappings
of names (in the internal string table) to types. These are mostly
useful when encoding variables that do not appear in a symbol table
but which some external user has some other way to figure out the
address of at runtime (dynamic symbol lookup or querying a VM
interpreter or something).
You can snapshot the creation process at any point: rolling back to a
snapshot deletes all types and variables added since that point.
You can make arbitrary type queries on the CTF container during the
creation process, but you must call ctf_update() first, which
translates the growing dynamic container into a static one (this uses
the CTF opening machinery, added in a later commit), which is quite
expensive. This function must also be called after adding types
and before writing the container out.
Because addition of types involves looking up existing types, we add a
little of the type lookup machinery here, as well: only enough to
look up types in dynamic containers under construction.
libctf/
* ctf-create.c: New file.
* ctf-lookup.c: New file.
include/
* ctf-api.h (zlib.h): New include.
(ctf_sect_t): New.
(ctf_sect_names_t): Likewise.
(ctf_encoding_t): Likewise.
(ctf_membinfo_t): Likewise.
(ctf_arinfo_t): Likewise.
(ctf_funcinfo_t): Likewise.
(ctf_lblinfo_t): Likewise.
(ctf_snapshot_id_t): Likewise.
(CTF_FUNC_VARARG): Likewise.
(ctf_simple_open): Likewise.
(ctf_bufopen): Likewise.
(ctf_create): Likewise.
(ctf_add_array): Likewise.
(ctf_add_const): Likewise.
(ctf_add_enum_encoded): Likewise.
(ctf_add_enum): Likewise.
(ctf_add_float): Likewise.
(ctf_add_forward): Likewise.
(ctf_add_function): Likewise.
(ctf_add_integer): Likewise.
(ctf_add_slice): Likewise.
(ctf_add_pointer): Likewise.
(ctf_add_type): Likewise.
(ctf_add_typedef): Likewise.
(ctf_add_restrict): Likewise.
(ctf_add_struct): Likewise.
(ctf_add_union): Likewise.
(ctf_add_struct_sized): Likewise.
(ctf_add_union_sized): Likewise.
(ctf_add_volatile): Likewise.
(ctf_add_enumerator): Likewise.
(ctf_add_member): Likewise.
(ctf_add_member_offset): Likewise.
(ctf_add_member_encoded): Likewise.
(ctf_add_variable): Likewise.
(ctf_set_array): Likewise.
(ctf_update): Likewise.
(ctf_snapshot): Likewise.
(ctf_rollback): Likewise.
(ctf_discard): Likewise.
(ctf_write): Likewise.
(ctf_gzwrite): Likewise.
(ctf_compress_write): Likewise.
2019-04-23 23:45:46 +02:00
|
|
|
|
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
|
|
|
|
|
|
|
|
|
|
|
|
* ctf-api.h (zlib.h): New include.
|
|
|
|
|
|
(ctf_sect_t): New.
|
|
|
|
|
|
(ctf_sect_names_t): Likewise.
|
|
|
|
|
|
(ctf_encoding_t): Likewise.
|
|
|
|
|
|
(ctf_membinfo_t): Likewise.
|
|
|
|
|
|
(ctf_arinfo_t): Likewise.
|
|
|
|
|
|
(ctf_funcinfo_t): Likewise.
|
|
|
|
|
|
(ctf_lblinfo_t): Likewise.
|
|
|
|
|
|
(ctf_snapshot_id_t): Likewise.
|
|
|
|
|
|
(CTF_FUNC_VARARG): Likewise.
|
|
|
|
|
|
(ctf_simple_open): Likewise.
|
|
|
|
|
|
(ctf_bufopen): Likewise.
|
|
|
|
|
|
(ctf_create): Likewise.
|
|
|
|
|
|
(ctf_add_array): Likewise.
|
|
|
|
|
|
(ctf_add_const): Likewise.
|
|
|
|
|
|
(ctf_add_enum_encoded): Likewise.
|
|
|
|
|
|
(ctf_add_enum): Likewise.
|
|
|
|
|
|
(ctf_add_float): Likewise.
|
|
|
|
|
|
(ctf_add_forward): Likewise.
|
|
|
|
|
|
(ctf_add_function): Likewise.
|
|
|
|
|
|
(ctf_add_integer): Likewise.
|
|
|
|
|
|
(ctf_add_slice): Likewise.
|
|
|
|
|
|
(ctf_add_pointer): Likewise.
|
|
|
|
|
|
(ctf_add_type): Likewise.
|
|
|
|
|
|
(ctf_add_typedef): Likewise.
|
|
|
|
|
|
(ctf_add_restrict): Likewise.
|
|
|
|
|
|
(ctf_add_struct): Likewise.
|
|
|
|
|
|
(ctf_add_union): Likewise.
|
|
|
|
|
|
(ctf_add_struct_sized): Likewise.
|
|
|
|
|
|
(ctf_add_union_sized): Likewise.
|
|
|
|
|
|
(ctf_add_volatile): Likewise.
|
|
|
|
|
|
(ctf_add_enumerator): Likewise.
|
|
|
|
|
|
(ctf_add_member): Likewise.
|
|
|
|
|
|
(ctf_add_member_offset): Likewise.
|
|
|
|
|
|
(ctf_add_member_encoded): Likewise.
|
|
|
|
|
|
(ctf_add_variable): Likewise.
|
|
|
|
|
|
(ctf_set_array): Likewise.
|
|
|
|
|
|
(ctf_update): Likewise.
|
|
|
|
|
|
(ctf_snapshot): Likewise.
|
|
|
|
|
|
(ctf_rollback): Likewise.
|
|
|
|
|
|
(ctf_discard): Likewise.
|
|
|
|
|
|
(ctf_write): Likewise.
|
|
|
|
|
|
(ctf_gzwrite): Likewise.
|
|
|
|
|
|
(ctf_compress_write): Likewise.
|
|
|
|
|
|
|
2019-04-23 23:05:52 +02:00
|
|
|
|
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
|
|
|
|
|
|
|
|
|
|
|
|
* ctf-api.h (ctf_errno): New declaration.
|
|
|
|
|
|
(ctf_errmsg): Likewise.
|
|
|
|
|
|
|
2019-04-23 19:55:27 +02:00
|
|
|
|
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
|
|
|
|
|
|
|
|
|
|
|
|
* ctf-api.h (ctf_setdebug): New.
|
|
|
|
|
|
(ctf_getdebug): Likewise.
|
|
|
|
|
|
|
2019-04-23 19:42:34 +02:00
|
|
|
|
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
|
|
|
|
|
|
|
|
|
|
|
|
* ctf-api.h: New file.
|
|
|
|
|
|
|
2019-04-23 19:02:25 +02:00
|
|
|
|
2019-05-28 Nick Alcock <nick.alcock@oracle.com>
|
|
|
|
|
|
|
|
|
|
|
|
* ctf.h: New file.
|
|
|
|
|
|
|
2019-04-25 14:46:01 +02:00
|
|
|
|
2019-05-24 Szabolcs Nagy <szabolcs.nagy@arm.com>
|
|
|
|
|
|
|
|
|
|
|
|
* elf/aarch64.h (DT_AARCH64_VARIANT_PCS): Define.
|
|
|
|
|
|
(STO_AARCH64_VARIANT_PCS): Define.
|
|
|
|
|
|
|
PowerPC relocations for prefix insns
include/
* elf/ppc64.h (R_PPC64_PLTSEQ_NOTOC, R_PPC64_PLTCALL_NOTOC),
(R_PPC64_PCREL_OPT, R_PPC64_D34, R_PPC64_D34_LO, R_PPC64_D34_HI30),
(R_PPC64_D34_HA30, R_PPC64_PCREL34, R_PPC64_GOT_PCREL34),
(R_PPC64_PLT_PCREL34, R_PPC64_PLT_PCREL34_NOTOC),
(R_PPC64_ADDR16_HIGHER34, R_PPC64_ADDR16_HIGHERA34),
(R_PPC64_ADDR16_HIGHEST34, R_PPC64_ADDR16_HIGHESTA34),
(R_PPC64_REL16_HIGHER34, R_PPC64_REL16_HIGHERA34),
(R_PPC64_REL16_HIGHEST34, R_PPC64_REL16_HIGHESTA34),
(R_PPC64_D28, R_PPC64_PCREL28): Define.
bfd/
* reloc.c (BFD_RELOC_PPC64_D34, BFD_RELOC_PPC64_D34_LO),
(BFD_RELOC_PPC64_D34_HI30, BFD_RELOC_PPC64_D34_HA30),
(BFD_RELOC_PPC64_PCREL34, BFD_RELOC_PPC64_GOT_PCREL34),
(BFD_RELOC_PPC64_PLT_PCREL34),
(BFD_RELOC_PPC64_ADDR16_HIGHER34, BFD_RELOC_PPC64_ADDR16_HIGHERA34),
(BFD_RELOC_PPC64_ADDR16_HIGHEST34, BFD_RELOC_PPC64_ADDR16_HIGHESTA34),
(BFD_RELOC_PPC64_REL16_HIGHER34, BFD_RELOC_PPC64_REL16_HIGHERA34),
(BFD_RELOC_PPC64_REL16_HIGHEST34, BFD_RELOC_PPC64_REL16_HIGHESTA34),
(BFD_RELOC_PPC64_D28, BFD_RELOC_PPC64_PCREL28): New reloc enums.
* elf64-ppc.c (PNOP): Define.
(ppc64_elf_howto_raw): Add reloc howtos for new relocations.
(ppc64_elf_reloc_type_lookup): Translate new bfd reloc numbers.
(ppc64_elf_ha_reloc): Adjust addend for highera34 and highesta34
relocs.
(ppc64_elf_prefix_reloc): New function.
(struct ppc_link_hash_table): Add notoc_plt.
(is_branch_reloc): Add R_PPC64_PLTCALL_NOTOC.
(is_plt_seq_reloc): Add R_PPC64_PLT_PCREL34,
R_PPC64_PLT_PCREL34_NOTOC, and R_PPC64_PLTSEQ_NOTOC.
(ppc64_elf_check_relocs): Handle pcrel got and plt relocs. Set
has_pltcall for section on seeing R_PPC64_PLTCALL_NOTOC. Handle
possible need for dynamic relocs on non-pcrel powerxx relocs.
(dec_dynrel_count): Handle non-pcrel powerxx relocs.
(ppc64_elf_inline_plt): Handle R_PPC64_PLTCALL_NOTOC.
(toc_adjusting_stub_needed): Likewise.
(ppc64_elf_tls_optimize): Handle R_PPC64_PLTSEQ_NOTOC.
(ppc64_elf_relocate_section): Handle new powerxx relocs.
* bfd-in2.h: Regenerate.
* libbfd.h: Regenerate.
gas/
* config/tc-ppc.c (ppc_elf_suffix): Support @pcrel, @got@pcrel,
@plt@pcrel, @higher34, @highera34, @highest34, and @highesta34.
(fixup_size): Handle new powerxx relocs.
(md_assemble): Warn for @pcrel on non-prefix insns.
Accept @l, @h and @ha on prefix insns, and infer reloc without
any @ suffix. Translate powerxx relocs to suit DQ and DS field
instructions. Include operand tests as well as opcode test to
translate BFD_RELOC_HI16_S to BFD_RELOC_PPC_16DX_HA.
(ppc_fix_adjustable): Return false for pcrel GOT and PLT relocs.
(md_apply_fix): Handle new powerxx relocs.
* config/tc-ppc.h (TC_FORCE_RELOCATION_SUB_LOCAL): Accept
BFD_RELOC_PPC64_ADDR16_HIGHER34, BFD_RELOC_PPC64_ADDR16_HIGHERA34,
BFD_RELOC_PPC64_ADDR16_HIGHEST34, BFD_RELOC_PPC64_ADDR16_HIGHESTA34,
BFD_RELOC_PPC64_D34, and BFD_RELOC_PPC64_D28.
* testsuite/gas/ppc/prefix-reloc.d,
* testsuite/gas/ppc/prefix-reloc.s: New test.
* testsuite/gas/ppc/ppc.exp: Run it.
2018-08-29 06:52:34 +02:00
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|
|
2019-05-24 Alan Modra <amodra@gmail.com>
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* elf/ppc64.h (R_PPC64_PLTSEQ_NOTOC, R_PPC64_PLTCALL_NOTOC),
|
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|
(R_PPC64_PCREL_OPT, R_PPC64_D34, R_PPC64_D34_LO, R_PPC64_D34_HI30),
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(R_PPC64_D34_HA30, R_PPC64_PCREL34, R_PPC64_GOT_PCREL34),
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|
(R_PPC64_PLT_PCREL34, R_PPC64_PLT_PCREL34_NOTOC),
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(R_PPC64_ADDR16_HIGHER34, R_PPC64_ADDR16_HIGHERA34),
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(R_PPC64_ADDR16_HIGHEST34, R_PPC64_ADDR16_HIGHESTA34),
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(R_PPC64_REL16_HIGHER34, R_PPC64_REL16_HIGHERA34),
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(R_PPC64_REL16_HIGHEST34, R_PPC64_REL16_HIGHESTA34),
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(R_PPC64_D28, R_PPC64_PCREL28): Define.
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PowerPC add initial -mfuture instruction support
This patch adds initial 64-bit insn assembler/disassembler support.
The only instruction added is "pnop" along with the automatic aligning
of prefix instruction so they do not cross 64-byte boundaries.
include/
* dis-asm.h (WIDE_OUTPUT): Define.
* opcode/ppc.h (prefix_opcodes, prefix_num_opcodes): Declare.
(PPC_OPCODE_POWERXX, PPC_GET_PREFIX, PPC_GET_SUFFIX),
(PPC_PREFIX_P, PPC_PREFIX_SEG): Define.
opcodes/
* ppc-dis.c (ppc_opts): Add "future" entry.
(PREFIX_OPCD_SEGS): Define.
(prefix_opcd_indices): New array.
(disassemble_init_powerpc): Initialize prefix_opcd_indices.
(lookup_prefix): New function.
(print_insn_powerpc): Handle 64-bit prefix instructions.
* ppc-opc.c (PREFIX_OP, PREFIX_FORM, SUFFIX_MASK, PREFIX_MASK),
(PMRR, POWERXX): Define.
(prefix_opcodes): New instruction table.
(prefix_num_opcodes): New constant.
binutils/
* objdump.c (disassemble_bytes): Set WIDE_OUTPUT in flags.
gas/
* config/tc-ppc.c (ppc_setup_opcodes): Handle prefix_opcodes.
(struct insn_label_list): New.
(insn_labels, free_insn_labels): New variables.
(ppc_record_label, ppc_clear_labels, ppc_start_line_hook): New funcs.
(ppc_frob_label, ppc_new_dot_label): Move functions earlier in file
and call ppc_record_label.
(md_assemble): Handle 64-bit prefix instructions. Align labels
that are on the same line as a prefix instruction.
* config/tc-ppc.h (tc_frob_label, ppc_frob_label): Move to
later in the file.
(md_start_line_hook): Define.
(ppc_start_line_hook): Declare.
* testsuite/gas/ppc/prefix-align.d,
* testsuite/gas/ppc/prefix-align.s: New test.
* testsuite/gas/ppc/ppc.exp: Run new test.
2018-05-15 23:48:14 +02:00
|
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2019-05-24 Peter Bergner <bergner@linux.ibm.com>
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Alan Modra <amodra@gmail.com>
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* dis-asm.h (WIDE_OUTPUT): Define.
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* opcode/ppc.h (prefix_opcodes, prefix_num_opcodes): Declare.
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(PPC_OPCODE_POWERXX, PPC_GET_PREFIX, PPC_GET_SUFFIX),
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(PPC_PREFIX_P, PPC_PREFIX_SEG): Define.
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2019-05-23 18:30:42 +02:00
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2019-05-23 Jose E. Marchesi <jose.marchesi@oracle.com>
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* elf/bpf.h: New file.
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2019-05-15 17:44:57 +02:00
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2019-05-16 Andre Vieira <andre.simoesdiasvieira@arm.com>
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* elf/arm.h (Tag_MVE_arch): Define new enum value.
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* opcode/arm.h (FPU_MVE, FPU_MVE_FP): New MACROs for new features.
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2019-05-09 11:29:27 +02:00
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2019-05-09 Matthew Malcomson <matthew.malcomson@arm.com>
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* opcode/aarch64.h (enum aarch64_opnd): New SVE_SHLIMM_UNPRED_22
|
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operand.
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2019-05-09 11:29:26 +02:00
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2019-05-09 Matthew Malcomson <matthew.malcomson@arm.com>
|
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* opcode/aarch64.h (enum aarch64_insn_class): Add sve_size_tsz_bhs
|
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iclass.
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2019-05-09 11:29:24 +02:00
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2019-05-09 Matthew Malcomson <matthew.malcomson@arm.com>
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* opcode/aarch64.h (enum aarch64_opnd): New SVE_Zm4_11_INDEX operand.
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2019-05-09 11:29:23 +02:00
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2019-05-09 Matthew Malcomson <matthew.malcomson@arm.com>
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* opcode/aarch64.h (enum aarch64_insn_class): Add sve_shift_tsz_bhsd
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iclass.
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2019-05-09 11:29:22 +02:00
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2019-05-09 Matthew Malcomson <matthew.malcomson@arm.com>
|
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* opcode/aarch64.h (enum aarch64_opnd): New SVE_SHRIMM_UNPRED_22
|
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operand.
|
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(enum aarch64_insn_class): Add sve_shift_tsz_hsd iclass.
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2019-05-09 11:29:21 +02:00
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2019-05-09 Matthew Malcomson <matthew.malcomson@arm.com>
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* opcode/aarch64.h (enum aarch64_insn_class): Add sve_size_013 iclass.
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2019-05-09 11:29:20 +02:00
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2019-05-09 Matthew Malcomson <matthew.malcomson@arm.com>
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* opcode/aarch64.h (enum aarch64_insn_class): Add sve_size_bh iclass.
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2019-05-09 11:29:19 +02:00
|
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2019-05-09 Matthew Malcomson <matthew.malcomson@arm.com>
|
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* opcode/aarch64.h (enum aarch64_insn_class): Add sve_size_sd2 iclass.
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2019-05-09 11:29:18 +02:00
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2019-05-09 Matthew Malcomson <matthew.malcomson@arm.com>
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* opcode/aarch64.h (enum aarch64_opnd): New SVE_ADDR_ZX operand.
|
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2019-05-09 11:29:17 +02:00
|
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2019-05-09 Matthew Malcomson <matthew.malcomson@arm.com>
|
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* opcode/aarch64.h (enum aarch64_opnd): New SVE_Zm3_11_INDEX operand.
|
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2019-05-09 11:29:16 +02:00
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2019-05-09 Matthew Malcomson <matthew.malcomson@arm.com>
|
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* opcode/aarch64.h (enum aarch64_insn_class): Add sve_size_hsd2 iclass.
|
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2019-05-09 11:29:15 +02:00
|
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2019-05-09 Matthew Malcomson <matthew.malcomson@arm.com>
|
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* opcode/aarch64.h (enum aarch64_opnd): New SVE_IMM_ROT3 operand.
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[binutils][aarch64] SVE2 feature extension flags.
Include all feature flag macros.
The "sve2" extension that enables the core sve2 instructions.
This also enables the sve extension, since sve is a requirement of sve2.
Extra optional sve2 features are the bitperm, sm4, aes, and sha3 extensions.
These are all given extra feature flags, "bitperm", "sve2-sm4",
"sve2-aes", and "sve2-sha3" respectively.
The sm4, aes, and sha3 extensions are explicitly marked as sve2
extensions to distinguish them from the corresponding NEON extensions.
Rather than continue extending the current feature flag numbers, I used
some bits that have been skipped.
gas/ChangeLog:
2019-05-09 Matthew Malcomson <matthew.malcomson@arm.com>
* config/tc-aarch64.c: Add command line architecture feature flags
"sve2", "sve2-sm4", "sve2-aes", "sve2-sha3", "bitperm".
* doc/c-aarch64.texi: Document new architecture feature flags.
include/ChangeLog:
2019-05-09 Matthew Malcomson <matthew.malcomson@arm.com>
* opcode/aarch64.h (AARCH64_FEATURE_SVE2
AARCH64_FEATURE_SVE2_AES, AARCH64_FEATURE_SVE2_BITPERM,
AARCH64_FEATURE_SVE2_SM4, AARCH64_FEATURE_SVE2_SHA3): New
feature macros.
opcodes/ChangeLog:
2019-05-09 Matthew Malcomson <matthew.malcomson@arm.com>
* aarch64-tbl.h
(aarch64_feature_sve2, aarch64_feature_sve2aes,
aarch64_feature_sve2sha3, aarch64_feature_sve2sm4,
aarch64_feature_sve2bitperm): New feature sets.
(SVE2, SVE2_AES, SVE2_SHA3, SVE2_SM4, SVE2_BITPERM): New macros
for feature set addresses.
(SVE2_INSN, SVE2_INSNC, SVE2AES_INSN, SVE2SHA3_INSN,
SVE2SM4_INSN, SVE2SM4_INSNC, SVE2BITPERM_INSN): New macros.
2019-05-09 11:29:12 +02:00
|
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|
2019-05-09 Matthew Malcomson <matthew.malcomson@arm.com>
|
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|
|
* opcode/aarch64.h (AARCH64_FEATURE_SVE2
|
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|
AARCH64_FEATURE_SVE2_AES, AARCH64_FEATURE_SVE2_BITPERM,
|
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|
|
AARCH64_FEATURE_SVE2_SM4, AARCH64_FEATURE_SVE2_SHA3): New
|
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|
|
feature macros.
|
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|
Add load-link, store-conditional paired EVA instructions
Add paired load-link and store-conditional instructions to the
EVA ASE for MIPS32R6[1]. These instructions are optional within
the EVA ASE. Their presence is indicated by the XNP bit in the
Config5 register.
[1] "MIPS Architecture for Programmers Volume II-A: The MIPS32
Instruction Set Manual", Imagination Technologies Ltd., Document
Number: MD00086, Revision 6.06, December 15, 2016, Section 3.2
"Alphabetical List of Instructions", pp. 230-231, pp. 357-360.
gas/
* config/tc-mips.c (mips_set_ase): Handle ASE_EVA_R6.
(macro) <M_LLWPE_AB, M_SCWPE_AB>: New cases.
(mips_after_parse_args): Translate EVA to EVA_R6.
* testsuite/gas/mips/ase-errors-1.s: Add new instructions.
* testsuite/gas/mips/eva.s: Likewise.
* testsuite/gas/mips/ase-errors-1.l: Check errors for
new instructions.
* testsuite/gas/mips/mipsr6@eva.d: Check new test cases.
include/
* opcode/mips.h (ASE_EVA_R6): New macro.
(M_LLWPE_AB, M_SCWPE_AB): New enum values.
opcodes/
* mips-dis.c (mips_calculate_combination_ases): Add ISA
argument and set ASE_EVA_R6 appropriately.
(set_default_mips_dis_options): Pass ISA to above.
(parse_mips_dis_option): Likewise.
* mips-opc.c (EVAR6): New macro.
(mips_builtin_opcodes): Add llwpe, scwpe.
Derived from patch authored by Andrew Bennett <andrew.bennett@imgtec.com>
2019-04-29 03:21:00 +02:00
|
|
|
|
2019-05-06 Andrew Bennett <andrew.bennett@imgtec.com>
|
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|
|
|
Faraz Shahbazker <fshahbazker@wavecomp.com>
|
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|
|
|
|
|
|
|
|
|
|
* opcode/mips.h (ASE_EVA_R6): New macro.
|
|
|
|
|
|
(M_LLWPE_AB, M_SCWPE_AB): New enum values.
|
|
|
|
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|
2019-05-01 18:14:01 +02:00
|
|
|
|
2019-05-01 Sudakshina Das <sudi.das@arm.com>
|
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|
|
|
|
|
|
|
|
|
|
* opcode/aarch64.h (AARCH64_FEATURE_TME): New.
|
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|
|
|
(enum aarch64_opnd): Add AARCH64_OPND_TME_UIMM16.
|
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|
|
[MIPS] Add load-link, store-conditional paired instructions
Add several baseline MIPS32R6[1] and MIPS64R6[2] instructions
that were omitted from the initial spec. These instructions
are optional in implementations but not associated with any
ASE or pseudo-ASE. Their presence is indicated by the XNP bit
in the Config5 register.
[1] "MIPS Architecture for Programmers Volume II-A: The MIPS32
Instruction Set Manual", Imagination Technologies Ltd., Document
Number: MD00086, Revision 6.06, December 15, 2016, Section 3.2
"Alphabetical List of Instructions", pp. 228-229, pp. 354-357.
[2] "MIPS Architecture for Programmers Volume II-A: The MIPS64
Instruction Set Manual", Imagination Technologies Ltd., Document
Number: MD00087, Revision 6.06, December 15, 2016, Section 3.2
"Alphabetical List of Instructions", pp. 289-290 and pp. 458-460.
gas/
* config/tc-mips.c (macro) <M_LLWP_AB, M_LLDP_AB, M_SCWP_AB,
M_SCDP_AB>: New cases and expansions for paired instructions.
* testsuite/gas/mips/llpscp-32.s: New test source.
* testsuite/gas/mips/llpscp-64.s: Likewise.
* testsuite/gas/mips/llpscp-32.d: New test.
* testsuite/gas/mips/llpscp-64.d: Likewise.
* testsuite/gas/mips/mips.exp: Run the new tests.
* testsuite/gas/mips/r6.s: Add new instructions to test source.
* testsuite/gas/mips/r6-64.s: Likewise.
* testsuite/gas/mips/r6-64-n32.d: Check new instructions.
* testsuite/gas/mips/r6-64-n64.d: Likewise.
* testsuite/gas/mips/r6-n32.d: Likewise.
* testsuite/gas/mips/r6-n64.d: Likwwise.
* testsuite/gas/mips/r6.d: Likewise.
include/
* opcode/mips.h (M_LLWP_AB, M_LLDP_AB): New enum values.
(M_SCWP_AB, M_SCDP_AB): Likewise.
opcodes/
* mips-opc.c (mips_builtin_opcodes): Add llwp, lldp, scwp, scdp.
2019-04-23 00:12:09 +02:00
|
|
|
|
2019-04-26 Andrew Bennett <andrew.bennett@imgtec.com>
|
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|
|
|
|
Faraz Shahbazker <fshahbazker@wavecomp.com>
|
|
|
|
|
|
|
|
|
|
|
|
* opcode/mips.h (M_LLWP_AB, M_LLDP_AB): New enum values.
|
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|
|
|
(M_SCWP_AB, M_SCDP_AB): Likewise.
|
|
|
|
|
|
|
2019-04-25 02:28:49 +02:00
|
|
|
|
2019-04-25 Maciej W. Rozycki <macro@linux-mips.org>
|
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|
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|
|
* opcode/mips.h: Update comment for MIPS32 CODE20 operand.
|
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|
|
2019-04-15 12:46:54 +02:00
|
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|
|
2019-04-15 Sudakshina Das <sudi.das@arm.com>
|
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* elf/arm.h (START_RELOC_NUMBERS): New entry for R_ARM_THM_BF12.
|
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|
2019-04-15 12:37:51 +02:00
|
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|
|
2019-04-15 Sudakshina Das <sudi.das@arm.com>
|
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|
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* elf/arm.h (START_RELOC_NUMBERS): New entry for R_ARM_THM_BF18.
|
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|
2019-04-15 12:18:57 +02:00
|
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|
|
2019-04-15 Sudakshina Das <sudi.das@arm.com>
|
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|
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* elf/arm.h (START_RELOC_NUMBERS): New entry for R_ARM_THM_BF16.
|
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|
2019-04-15 11:54:42 +02:00
|
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|
|
2019-04-15 Thomas Preud'homme <thomas.preudhomme@arm.com>
|
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|
* elf/arm.h (TAG_CPU_ARCH_V8_1M_MAIN): new macro.
|
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|
|
(MAX_TAG_CPU_ARCH): Set value to above macro.
|
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|
|
|
* opcode/arm.h (ARM_EXT2_V8_1M_MAIN): New macro.
|
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|
|
(ARM_AEXT_V8_1M_MAIN): Likewise.
|
|
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|
|
(ARM_AEXT2_V8_1M_MAIN): Likewise.
|
|
|
|
|
|
(ARM_ARCH_V8_1M_MAIN): Likewise.
|
|
|
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|
|
[BINUTILS, AArch64, 2/2] Update Store Allocation Tag instructions
This patch updates the Store allocation tags instructions in
Armv8.5-A Memory Tagging Extension. This is part of the changes
that have been introduced recently in the 00bet10 release
All of these instructions have an updated register operand (Xt -> <Xt|SP>)
- STG <Xt|SP>, [<Xn|SP>, #<simm>]
- STG <Xt|SP>, [<Xn|SP>, #<simm>]!
- STG <Xt|SP>, [<Xn|SP>], #<simm>
- STZG <Xt|SP>, [<Xn|SP>, #<simm>]
- STZG <Xt|SP>, [<Xn|SP>, #<simm>]!
- STZG <Xt|SP>, [<Xn|SP>], #<simm>
- ST2G <Xt|SP>, [<Xn|SP>, #<simm>]
- ST2G <Xt|SP>, [<Xn|SP>, #<simm>]!
- ST2G <Xt|SP>, [<Xn|SP>], #<simm>
- STZ2G <Xt|SP>, [<Xn|SP>, #<simm>]
- STZ2G <Xt|SP>, [<Xn|SP>, #<simm>]!
- STZ2G <Xt|SP>, [<Xn|SP>], #<simm>
In order to accept <Rt|SP> a new operand type Rt_SP is introduced which has
the same field as FLD_Rt but follows other semantics of Rn_SP.
*** gas/ChangeLog ***
2019-04-11 Sudakshina Das <sudi.das@arm.com>
* config/tc-aarch64.c (process_omitted_operand): Add case for
AARCH64_OPND_Rt_SP.
(parse_operands): Likewise.
* testsuite/gas/aarch64/armv8_5-a-memtag.d: Update tests.
* testsuite/gas/aarch64/armv8_5-a-memtag.s: Likewise.
* testsuite/gas/aarch64/illegal-memtag.l: Likewise.
* testsuite/gas/aarch64/illegal-memtag.s: Likewise.
*** include/ChangeLog ***
2019-04-11 Sudakshina Das <sudi.das@arm.com>
* opcode/aarch64.h (enum aarch64_opnd): Add AARCH64_OPND_Rt_SP.
*** opcodes/ChangeLog ***
2019-04-11 Sudakshina Das <sudi.das@arm.com>
* aarch64-opc.c (aarch64_print_operand): Add case for
AARCH64_OPND_Rt_SP.
(verify_constraints): Likewise.
* aarch64-tbl.h (QL_LDST_AT): Update to add SP qualifier.
(struct aarch64_opcode): Update stg, stzg, st2g, stz2g instructions
to accept Rt|SP as first operand.
(AARCH64_OPERANDS): Add new Rt_SP.
* aarch64-asm-2.c: Regenerated.
* aarch64-dis-2.c: Regenerated.
* aarch64-opc-2.c: Regenerated.
2019-04-11 11:19:37 +02:00
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2019-04-11 Sudakshina Das <sudi.das@arm.com>
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* opcode/aarch64.h (enum aarch64_opnd): Add AARCH64_OPND_Rt_SP.
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2019-04-09 02:04:01 +02:00
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2019-04-08 H.J. Lu <hongjiu.lu@intel.com>
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* elf/common.h (GNU_PROPERTY_X86_ISA_1_AVX512_BF16): New.
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2019-04-07 13:11:49 +02:00
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2019-04-07 Alan Modra <amodra@gmail.com>
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Merge from gcc.
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2019-04-03 Vineet Gupta <vgupta@synopsys.com>
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PR89877
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* longlong.h [__arc__] (add_ssaaaa): Add cc clobber.
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(sub_ddmmss): Likewise.
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2019-04-06 16:25:10 +02:00
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2019-04-06 H.J. Lu <hongjiu.lu@intel.com>
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* bfdlink.h (bfd_link_info): Remove x86-specific linker options.
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[GAS, Arm] CLI with architecture sensitive extensions
This patch adds a new framework to add architecture sensitive extensions, like
GCC does. This patch also implements all architecture extensions currently
available in GCC.
This framework works as follows. To enable architecture sensitive extensions
for a particular architecture, that architecture must contain an ARM_ARCH_OPT2
entry in the 'arm_archs' table. All fields here are the same as previous, with
the addition of a new extra field at the end to <name> it's extension table.
This <name>, corresponds to a <name>_ext_table of type 'struct arm_ext_table'.
This struct can be filled with three types of entries:
ARM_ADD (string <ext>, arm_feature_set <enable_bits>), which means +<ext> will
enable <enable_bits>
ARM_REMOVE (string <ext>, arm_feature_set <disable_bits>), which means
+no<ext> will disable <disable_bits>
ARM_EXT (string <ext>, arm_feature_set <enable_bits>, arm_feature_set
<disable_bits>), which means +<ext> will enable <enable_bits> and +no<ext>
will disable <disable_bits> (this is to be used instead of adding an
ARM_ADD and ARM_REMOVE for the same <ext>)
This patch does not disable the use of the old extensions, even if some of them
are duplicated in the new tables. This is a "in-between-step" as we may want to
deprecate the old table of extensions in later patches. For now, GAS will first
look for the +<ext> or +no<ext> in the new table and if no entry is found it
will continue searching in the old table, following old behaviour. If only an
ARM_ADD or an ARM_REMOVE is defined for <ext> and +no<ext> or +<ext> resp. is
used then it also continues to search the old table for it.
A couple of caveats:
- This patch does not enable the use of these architecture extensions with the
'.arch_extension' directive. This is future work that I will tend to later.
- This patch does not enable the use of these architecture extensions with the
-mcpu option. This is future work that I will tend to later.
- This patch does not change the current behaviour when combining an
architecture extension and using -mfpu on the command-line. The current
behaviour of GAS is to stage the union of feature bits enabled by both -march
and -mfpu. GCC behaves differently here, so this is something we may want to
revisit on a later date.
2019-04-01 11:43:32 +02:00
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2019-04-01 Andre Vieira <andre.simoesdiasvieira@arm.com>
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* opcode/arm.h (FPU_NEON_ARMV8_1): New.
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(FPU_ARCH_NEON_VFP_ARMV8_1): Use FPU_NEON_ARMV8_1.
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(FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_1): Likewise.
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(FPU_ARCH_DOTPROD_NEON_VFP_ARMV8): Likewise.
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(FPU_ARCH_NEON_VFP_ARMV8_2_FP16): New.
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(FPU_ARCH_NEON_VFP_ARMV8_2_FP16FML): New.
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(FPU_ARCH_NEON_VFP_ARMV8_4_FP16FML): New.
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(FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_4): New.
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2019-03-28 01:06:55 +01:00
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2019-03-28 Alan Modra <amodra@gmail.com>
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PR 24390
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* opcode/ppc.h (PPC_OPERAND_CR_REG): Comment.
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2019-03-25 13:08:53 +01:00
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2019-03-25 Tamar Christina <tamar.christina@arm.com>
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* dis-asm.h (struct disassemble_info): Add stop_offset.
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2019-03-13 12:09:10 +01:00
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2019-03-13 Sudakshina Das <sudi.das@arm.com>
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* elf/aarch64.h (DT_AARCH64_PAC_PLT): New.
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[BFD, LD, AArch64, 2/3] Add --force-bti to enable BTI and to select BTI enabled PLTs
This is part of the patch series to add support for BTI and
PAC in AArch64 linker.
1) This patch adds a new ld command line option: --force-bti.
In the presence of this option, the linker enables BTI with the
GNU_PROPERTY_AARCH64_FEATURE_1_BTI feature. This gives out warning
in case of missing gnu notes for BTI in inputs.
2) It also defines a new set of BTI enabled PLTs. These are used either
when all the inputs are marked with GNU_PROPERTY_AARCH64_FEATURE_1_BTI
or when the new --force-bti option is used. This required adding new
fields in elf_aarch64_link_hash_table so that we could make the PLT
related information more generic.
3) It also defines a dynamic tag DT_AARCH64_BTI_PLT. The linker uses
this whenever it picks BTI enabled PLTs.
All these are made according to the new AArch64 ELF ABI
https://developer.arm.com/docs/ihi0056/latest/elf-for-the-arm-64-bit-architecture-aarch64-abi-2018q4
*** bfd/ChangeLog ***
2019-03-13 Sudakshina Das <sudi.das@arm.com>
Szabolcs Nagy <szabolcs.nagy@arm.com>
* bfd-in.h (aarch64_plt_type, aarch64_enable_bti_type): New.
(aarch64_bti_pac_info): New.
(bfd_elf64_aarch64_set_options): Add aarch64_bti_pac_info argument.
(bfd_elf32_aarch64_set_options): Likewise.
* bfd-in2.h: Regenerate
* elfnn-aarch64.c (PLT_BTI_ENTRY_SIZE): New.
(PLT_BTI_SMALL_ENTRY_SIZE, PLT_BTI_TLSDESC_ENTRY_SIZE): New.
(elfNN_aarch64_small_plt0_bti_entry): New.
(elfNN_aarch64_small_plt_bti_entry): New.
(elfNN_aarch64_tlsdesc_small_plt_bti_entry): New.
(elf_aarch64_obj_tdata): Add no_bti_warn and plt_type fields.
(elf_aarch64_link_hash_table): Add plt0_entry, plt_entry and
tlsdesc_plt_entry_size fields.
(elfNN_aarch64_link_hash_table_create): Initialise the new fields.
(setup_plt_values): New helper function.
(bfd_elfNN_aarch64_set_options): Use new bp_info to set plt sizes and
bti enable type.
(elfNN_aarch64_allocate_dynrelocs): Use new size members instead of
fixed macros.
(elfNN_aarch64_size_dynamic_sections): Likewise and add checks.
(elfNN_aarch64_create_small_pltn_entry): Use new generic pointers
to plt stubs instead of fixed ones and update filling them according
to the need for bti.
(elfNN_aarch64_init_small_plt0_entry): Likewise.
(elfNN_aarch64_finish_dynamic_sections): Likewise.
(get_plt_type, elfNN_aarch64_get_synthetic_symtab): New.
(elfNN_aarch64_plt_sym_val): Update size accordingly.
(elfNN_aarch64_link_setup_gnu_properties): Set up plts if BTI GNU NOTE
is set.
(bfd_elfNN_get_synthetic_symtab): Define.
(elfNN_aarch64_merge_gnu_properties): Give out warning with --force-bti
and mising BTI NOTE SECTION.
*** binutils/ChangeLog ***
2019-03-13 Sudakshina Das <sudi.das@arm.com>
Szabolcs Nagy <szabolcs.nagy@arm.com>
* readelf.c (get_aarch64_dynamic_type): New.
(get_dynamic_type): Use above for EM_AARCH64.
(dynamic_section_aarch64_val): New.
(process_dynamic_section): Use above for EM_AARCH64.
*** include/ChangeLog ***
2019-03-13 Sudakshina Das <sudi.das@arm.com>
Szabolcs Nagy <szabolcs.nagy@arm.com>
* elf/aarch64.h (DT_AARCH64_BTI_PLT): New.
*** ld/ChangeLog ***
2019-03-13 Sudakshina Das <sudi.das@arm.com>
Szabolcs Nagy <szabolcs.nagy@arm.com>
* NEWS: Document --force-bti.
* emultempl/aarch64elf.em (plt_type, bti_type, OPTION_FORCE_BTI): New.
(PARSE_AND_LIST_SHORTOPTS, PARSE_AND_LIST_OPTIONS): Add force-bti.
(PARSE_AND_LIST_ARGS_CASES): Handle OPTION_FORCE_BTI.
* testsuite/ld-aarch64/aarch64-elf.exp: Add all the tests below.
* testsuite/ld-aarch64/bti-plt-1.d: New test.
* testsuite/ld-aarch64/bti-plt-1.s: New test.
* testsuite/ld-aarch64/bti-plt-2.s: New test.
* testsuite/ld-aarch64/bti-plt-2.d: New test.
* testsuite/ld-aarch64/bti-plt-3.d: New test.
* testsuite/ld-aarch64/bti-plt-4.d: New test.
* testsuite/ld-aarch64/bti-plt-5.d: New test.
* testsuite/ld-aarch64/bti-plt-6.d: New test.
* testsuite/ld-aarch64/bti-plt-7.d: New test.
* testsuite/ld-aarch64/bti-plt-so.s: New test.
* testsuite/ld-aarch64/bti-plt.ld: New test.
2019-03-13 11:54:30 +01:00
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2019-03-13 Sudakshina Das <sudi.das@arm.com>
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Szabolcs Nagy <szabolcs.nagy@arm.com>
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* elf/aarch64.h (DT_AARCH64_BTI_PLT): New.
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2019-03-13 11:42:27 +01:00
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2019-03-13 Sudakshina Das <sudi.das@arm.com>
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* elf/common.h (GNU_PROPERTY_AARCH64_FEATURE_1_AND): New.
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(GNU_PROPERTY_AARCH64_FEATURE_1_BTI): New.
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(GNU_PROPERTY_AARCH64_FEATURE_1_PAC): New.
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2019-02-20 11:39:28 +01:00
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2019-02-20 Alan Hayward <alan.hayward@arm.com>
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* elf/common.h (NT_ARM_PAC_MASK): Add define.
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2019-02-15 13:50:52 +01:00
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2019-02-15 Saagar Jha <saagar@saagarjha.com>
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* mach-o/loader.h: Use new OS names in comments.
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2019-02-12 14:02:48 +01:00
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2019-02-11 Philippe Waroquiers <philippe.waroquiers@skynet.be>
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* splay-tree.h (splay_tree_delete_key_fn): Update comment.
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(splay_tree_delete_value_fn): Likewise.
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2019-01-31 17:01:27 +01:00
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2019-01-31 Andreas Krebbel <krebbel@linux.ibm.com>
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* opcode/s390.h (enum s390_opcode_cpu_val): Add
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S390_OPCODE_ARCH13.
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2019-01-25 14:57:14 +01:00
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2019-01-25 Sudakshina Das <sudi.das@arm.com>
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Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
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* opcode/aarch64.h (enum aarch64_opnd): Remove
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AARCH64_OPND_ADDR_SIMPLE_2.
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(enum aarch64_insn_class): Remove ldstgv_indexed.
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2019-01-21 22:50:24 +01:00
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2019-01-22 Tom Tromey <tom@tromey.com>
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* coff/ecoff.h: Include coff/sym.h.
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2019-01-19 16:55:50 +01:00
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2018-06-24 Nick Clifton <nickc@redhat.com>
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2.32 branch created.
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2019-01-16 22:14:59 +01:00
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2019-01-16 Kito Cheng <kito@andestech.com>
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* elf/riscv.h (SHT_RISCV_ATTRIBUTES): Define.
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(Tag_RISCV_arch): Likewise.
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(Tag_RISCV_priv_spec): Likewise.
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(Tag_RISCV_priv_spec_minor): Likewise.
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(Tag_RISCV_priv_spec_revision): Likewise.
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(Tag_RISCV_unaligned_access): Likewise.
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(Tag_RISCV_stack_align): Likewise.
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2019-01-11 10:47:42 +01:00
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2019-01-14 Pavel I. Kryukov <kryukov@frtk.ru>
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* dis-asm.h: include <string.h>
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Sync libiberty sources with gcc master versions.
. * libiberty: Sync with gcc. Bring in:
2019-01-09 Sandra Loosemore <sandra@codesourcery.com>
PR other/16615
* cp-demangle.c: Mechanically replace "can not" with "cannot".
* floatformat.c: Likewise.
* strerror.c: Likewise.
2018-12-22 Jason Merrill <jason@redhat.com>
Remove support for demangling GCC 2.x era mangling schemes.
* cplus-dem.c: Remove cplus_mangle_opname, cplus_demangle_opname,
internal_cplus_demangle, and all subroutines.
(libiberty_demanglers): Remove entries for ancient GNU (pre-3.0),
Lucid, ARM, HP, and EDG demangling styles.
(cplus_demangle): Remove 'work' variable. Don't call
internal_cplus_demangle.
include * Merge from GCC:
2018-12-22 Jason Merrill <jason@redhat.com>
* demangle.h: Remove support for ancient GNU (pre-3.0), Lucid,
ARM, HP, and EDG demangling styles.
2019-01-10 10:44:13 +01:00
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2019-01-10 Nick Clifton <nickc@redhat.com>
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* Merge from GCC:
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2018-12-22 Jason Merrill <jason@redhat.com>
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* demangle.h: Remove support for ancient GNU (pre-3.0), Lucid,
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ARM, HP, and EDG demangling styles.
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2019-01-09 22:59:16 +01:00
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2019-01-09 Sandra Loosemore <sandra@codesourcery.com>
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Merge from GCC:
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PR other/16615
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* libiberty.h: Mechanically replace "can not" with "cannot".
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* plugin-api.h: Likewise.
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2018-12-25 12:44:15 +01:00
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2018-12-25 Yoshinori Sato <ysato@users.sourceforge.jp>
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* elf/rx.h (EF_RX_CPU_MASK): Update new bits.
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(E_FLAG_RX_V3): New RXv3 type.
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* opcode/rx.h (RX_Size): Add double size.
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(RX_Operand_Type): Add double FPU registers.
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(RX_Opcode_ID): Add new instuctions.
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2019-01-01 11:31:27 +01:00
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2019-01-01 Alan Modra <amodra@gmail.com>
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Update year range in copyright notice of all files.
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2019-01-01 11:53:15 +01:00
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For older changes see ChangeLog-2018
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2016-01-01 11:44:31 +01:00
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2019-01-01 11:53:15 +01:00
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Copyright (C) 2019 Free Software Foundation, Inc.
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2016-01-01 11:44:31 +01:00
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Copying and distribution of this file, with or without modification,
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are permitted in any medium without royalty provided the copyright
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notice and this notice are preserved.
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Local Variables:
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mode: change-log
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left-margin: 8
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fill-column: 74
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version-control: never
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End:
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